AR 4021 BT - Car radio AEG - Free user manual and instructions
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| Product Type | Car stereo with Bluetooth, CD, radio (FM/AM), USB, SD/MMC, AUX |
| Brand | AEG |
| Model | AR 4021 BT |
| Dimensions (L x W x H) | 181 x 163 x 52 mm |
| Weight | 1.33 kg |
| Power Supply | 12 V DC, 15 A max |
| Max Power Output | 4 x 40 W (PMPO) |
| Frequency Range FM | 87.5 – 108 MHz |
| Frequency Range AM | 522 – 1620 kHz |
| Bluetooth | Hands-free calling and A2DP music streaming |
| CD Player | Supports Audio CD, MP3/WMA discs |
| USB Port | Playback of MP3/WMA files (5V/100mA output only) |
| SD/MMC Card Slot | Playback of MP3/WMA files |
| AUX Input | 3.5 mm stereo jack for external devices |
| Remote Control | Infrared steering wheel remote included |
| Detachable Front Panel | Yes, for theft protection |
| Equalizer Presets | FLAT, CLASSICS, POP M, ROCK M, DSP OFF |
| RDS Functions | AF, PTY, TA, EON, REG |
| Operating Temperature | +5 to +40 °C |
| Humidity (non-condensing) | 5 – 90 % |
| Safety Class | Laser class 1 |
| Fuse Rating | Vehicle flat fuse 5 A |
| Included Accessories | ISO connectors, antenna adapter, sleeve, frame, installation keys, remote control with battery, steering wheel mount |
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USER MANUAL AR 4021 BT AEG
Overview of the Components....Page 3
Overview......Page 78
Technical Data......Page 93
Index Page 94
POLISH
Table of Contents
Card reader (SD/MMC)....17
Phone calls via Bluetooth 17
(Advanced Audio Distribution Profile)....19
Cleaning 19
1 Rubber band
4 Screws
2 Fixing clamp
5 Remote control
Commissioning
German

Card reader (SD/MMC)
i NOTE
D-47906 Kempen/Germany
(Advanced Audio Distribution Profile)....38
Cleaning....39
1 Rubber strip
4 Screws
Start-up


- Treble (at 10 kHz) ±10 dB
Radio
Channel separation > 50 dB
Frequency response 40 Hz - 18 kHz
MP3/WMA format requirements
Connect External Audio Device
◆ Connect line out of the external audio device to AUX IN (16) jack on the front panel. ◆ Select playback mode for external device by repeatedly pressing PAIR/MOD (4) until AUX is displayed.
1 Rubber band
4 Screws
Power on

- Treble (at 10 kHz) ±10 dB
Radio
Removing the front panel....49
(Advanced Audio Distribution Profile) 74
Cleaning 74
1 Rubber strap
4 Screws
Startup

ITALIAN

- Treble (at 10 kHz) ±10 dB
Radio
FM frequency range 87.5 - 108 MHz
About this User Manual....79
Copyright 79
Limitation of Liability....79
Warnings....79
Intended Use....79
Safety 79
Basic Safety Precautions....79
Danger from Laser Radiation....80
Traffic Safety 80
Overview of the Components (See Fold-out Page) .....80
Car radio....80
Remote control....81
Installation and Connection....81
Safety Precautions....81
Scope of Delivery and Inspection for Transport Damages 81
Disposal of Packaging Materials....81
Connection....82
Installation and Removal 82
Fit steering wheel mount for remote control....84
Start-up 85
Attach Front Panel 85
Detach Front Panel 85
Replace the remote control batteries....85
Operation 86
On/Off 86
Settings....86
Radio Functions....87
General CD Functions....88
Additional Functions MP3/WMA CDs....89
USB Port 89
Card Reader (SD/MMC) 89
Phoning via Bluetooth 90
Registering of devices (PAIRING)....90
Disconnect devices (#/SCAN/CON button (18)) .....90
Reconnect devices (#/SCAN/CON button (18)) .....90
Phone menu settings....90
End call....91
Outgoing calls....91
Redial....91
Incoming calls....91
Transfer call between car radio and mobile phone .....91
Music reproduction via A2DP
(Advanced Audio Distribution Profile) 91
Cleaning 92
Safety Precautions....92
Cleaning....92
Troubleshooting 92
Safety Precautions....92
Troubleshooting 92
Technical Data 93
Declaration of Conformity 93
Index 94
Introduction
Foreword
Dear customer,
Thank you for choosing our product.
Read the information in this manual to get familiar with your device quickly and be able to use all its functions.
We wish you an enjoyable experience.
About this User Manual
This user manual is part of the stereo car radio AR 4021 BT (hereinafter referred to as unit); it informs you about intended use, safety, connection and operation of the unit. The user manual must be kept handy. It is to be read and applied by any person in charge of operating or troubleshooting.
Keep this user manual for future reference and pass it on to any subsequent owners.
Copyright
This documentation is protected by copyright.
Reproduction of texts and illustrations, be it in part or modified, is only permitted with written authorization by the manufacturer.
Limitation of Liability
All technical information, data and instructions for connection and operation contained in this user manual were up-to-date at the time of printing and reflect our recent experiences and findings to the best of our knowledge.
No claims can be derived from the information, illustrations and descriptions in this user manual.
The manufacturer assumes no liability for damages due to non-observance of the manual, other than intended use, inappropriate repairs, unauthorized modifications or use of unauthorized spare parts.
Warnings

WARNING
A warning of this risk level indicates an imminent dangerous situation.
If the dangerous situation is not avoided, this can cause death or severe injuries.
▶ Follow the instructions in this warning to avoid danger of death or severe injury.

CAUTION
A warning of this risk level indicates potential damage to property.
Not avoiding such a situation can cause damage.
▶ Follow the instructions of this warning to avoid damage.

NOTE
▶ A note indicates additional information that eases the use of the device.
Intended Use
This unit is only intended to
■ receive FM or AM radio stations ■ playback Audio CDs ■ playback MP3 and WMA files from CD, USB device or SD/MMC memory card ■ playback audio signals from external audio devices ■ for music reproduction via Bluetooth profile A2DP ■ for phoning via Bluetooth
No other use is intended.

WARNING
Danger resulting from inappropriate use!
This device can cause danger in case of inappropriate use and/or use other than intended.
▶ Use the device only as intended. ▶ Adhere to the procedures described in this manual.
Claims for damages due to inappropriate use are excluded. The risk remains solely with the user.
Safety
This chapter offers important safety information on the use of the device.
This device complies with legal safety regulations. Inappropriate use can cause harm to persons and property.
Basic Safety Precautions
For safe operation of the device, observe the following safety precautions:
■ Before use, check the device for visible damage. Do not use a damaged device or if it has been dropped. ■ Have damaged cords or connectors replaced by an authorized person or the customer service. ■ Persons with reduced physical, mental or sensory capabilities may not operate the device unless they are given supervision or instruction by a person responsible for their safety. ■ Children may only operate the device when supervised. ■ Have repairs done only by an authorized expert or customer service. Improper repairs can cause considerable dangers for the user. Moreover, the warranty will be void. ■ Repairs during the warranty period may only be done by a customer service authorized by the manufacturer. Otherwise, consecutive damages will not be covered by the warranty.
■ Defective components must be replaced with genuine parts. Only these parts guarantee conformity with the safety requirements. ■ Protect the device from moist and ingress of fluids.
Danger from Laser Radiation

WARNING

The unit is equipped with a class 1 Laser. Laser radiation can damage your eyes!
Please observe the following safety precautions to avoid laser radiation:
▶ Do not open the casing of the unit. ▶ Repairs only by authorized service center. ▶ Do not modify the unit.
Traffic Safety

WARNING
Traffic safety has the highest priority!
Please observe the following safety precautions to keep yourself and others safe:
Study the functions before you drive. Only operate the unit when traffic permits! Rather stop in a suitable place and operate/set the unit. Attach and remove the front panel only when parking. Set a sensible volume to hear acoustic signals of fire trucks, police cars and other emergency services in good time.
Overview of the Components (See Fold-out Page)
Car radio
1 Unlock button for front panel 2 ⏻/MUTE button: Turn unit off/switch to mute 3 button: Accept call or dial the entered number/last selected number
4 PAIR/MOD button: Register devices/Set mode
5 SEL button: Open the settings/Confirm
6 IR receiver for remote control signals
7 Display 8 1 - 6 buttons: Access station memory/Entering telephone numbers
9 1/PAU button: Start and pause playback/Numeric button for entering telephone numbers
10 2/SCN button: Activate SCAN function/Numeric button for entering telephone numbers
11 3/RPT button: Activate and deactivate repeat functions/Numeric button for entering telephone numbers 12 6/DIR + button: Select next album/Numeric button for entering telephone numbers 13 5/DIR - button: Select previous album/Numeric button for entering telephone numbers 14 4/SHF button: Activate and deactivate random playback/Numeric button for entering telephone numbers 15 USB port 16 AUX-IN: 3.5 mm stereo input 17 9/PTY button: Numeric button for entering telephone numbers/Programme type/Open more settings 18 #/SCAN/CON button: Hash button for entering telephone numbers/Reconnect or disconnect/Frequency scan for receivable radio stations in the current range 19 8/EQ/TA button: Numeric button for entering telephone numbers/Select default equalizer settings/Activate and deactivate traffic announcements 20 0/DISP button: Numeric button for entering telephone numbers/Display additional information 21 */+ / AS/PS button: Asterisk/Plus button for entering telephone numbers/auto search and save radio stations 22 7/AF/MON button: Numeric button for entering telephone numbers/Switch AF on/off/Switch to Mono/Stereo 23 ▶ button: Manual search up/auto search up/skip to next track button: Manual search down/auto search down/skip to previous track ▲ button: Increase volume/change option in menu ▼ button: Reduce volume/change option in menu 24 MIC (Microphone) 25 T-MENU button: Open telephone menu 26 /BAND button: End telephone call or reject incoming call/Select frequency band/activate and deactivate LOUDNESS function 27 CD drive 28 ▲ button: Eject CD 29 SD/MMC card slot
30 RESET button:
Reset the unit to default settings (behind the front panel)
Remote control
1 ⏻/MUTE button: Switch unit off/switch to mute. 2 button: Accept call or call the entered number/last selected number. 3 2/SCN button: Activate SCAN function/Numeric button for entering telephone numbers. 4 3/RPT button: Switch Repeat function on/off/Numeric button for entering telephone numbers. 5 6/ button: Select next folder/Numeric button for entering telephone numbers. 6 9/PTY/LOC button: Numeric button for entering telephone numbers/Programme identifier/Open more settings. 7 8/EQ/TA button: Numeric button for entering telephone numbers/Select default equalizer settings/Switch radio traffic service on and off. 8 #/ button: Hash button for entering telephone numbers /Increase frequency/Automatic tuning/Play next title. 9 0/DISP button: Numeric button for entering telephone numbers/Show additional information on the display. 10 */ button: Asterisk button for entering telephone numbers/Reduce frequency/Automatic tuning/Playback previous title. 11 7/AF/MON button: Numeric button for entering telephone numbers/Switch AF on and off/Switch to Mono/Stereo. 12 4/SHF button: Switch random playback on and off/Numeric button for entering telephone numbers. 13 5/button: Select previous folder/Numeric button for entering telephone numbers. 14 1/▶ button: Start and pause playback/Numeric button for entering telephone numbers. 15 PAIR/MODE button: Register devices/Set operating mode. 16 /BAND/LOU button: End call or reject incoming call/Select frequency range/Switch LOUDNESS function on and off. 17 Battery compartment. 18 Notch for mounting on the left hand side of the steering wheel.
19 Volume control. 20 Notch for mounting on the right hand side of the steering wheel.
Installation and Connection
Safety Precautions

WARNING
Taking the unit into operation may lead to injuries or damage!
Please observe the following safety precautions to avoid risks:
▶ Packaging materials are no toys, danger of suffocation. ▶ Observe the installation instructions to avoid injuries and damage.
Scope of Delivery and Inspection for Transport Damages
The standard scope of delivery of this unit includes the following components:
■ Car radio (including front panel) ■ Sleeve (attached) ■ Frame (attached) ■ Mounting strip (incl. fastening materials) ■ Installation key (2x) ■ Case for front panel ■ ISO connector with cables (2x) ■ Antenna adapter ■ User manual ■ Steering wheel remote control (incl. battery) ■ Steering wheel mount

NOTE
▶ Check the content for completeness and visible damage. ▶ Should you notice any transport damage, please contact your dealer immediately.
Disposal of Packaging Materials
The packaging protects the device from transport damage. The packaging materials are selected in environmentally friendly and disposal aspects and are recyclable.

Recycling of packaging materials saves raw materials and reduces waste. Dispose of unwanted packaging in accordance with local regulations.

NOTE
▶ If possible, keep the original packaging for the duration of the warranty period, so that the device can be properly packaged in the event of warranty claims.
Connection
WARNING
During installation, damages may occur!
▶ Have the unit installed by a specialized workshop, if possible. ▶ If installing the unit yourself, observe all installation and connection instructions for safe and trouble-free operation.
CAUTION
Wrong connections may damage the unit.
▶ Use the ISO connectors when installing the unit. If necessary, vehicle-specific ISO adapters are available at the specialized car accessories trade.
Rear Panel Connections
A ISO connector B (speakers) B Vehicle flat fuse (5 A) C ISO connector A (power supply) D LINE OUT: RCA audio output L/R for amplifier E Antenna connector
Configuration ISO Connectors
ISO connector A 1 Not connected

2 Not connected
3 Not connected
4 Continuous plus (memory)
5 Control voltage for electronic/motor antenna or power amplifier
6 Not connected
7 12 V (ACC)
8 GND
ISO connector B

1 Speaker rear right +
2 Speaker rear right -
3 Speaker front right +
4 Speaker front right -
5 Speaker front left +
6 Speaker front left -
7 Speaker rear left +
8 Speaker rear left -
CAUTION
Use speakers with an impedance of at least 4 Ohm. The speaker cabling must be floating ground.
NOTE
For connecting the unit to two speakers, use only front speaker cables. Please observe that for the station memory, connector 4 must be connected to continuous positive. In some vehicle models, the standard configuration for connectors [4] and [7] (ISO A) is inverted. In this case, the station preset can get lost. To remedy this, invert these connections: 7 (ACC) and 4 (continuous positive).
Auto Antenna Power Supply A5 (ISO A)
CAUTION
Damage to the unit is possible!
Do not connect the terminal for antenna power to the power supply of the antenna. Max. load: 100 mA.
The terminal for antenna power is provided for a relay-controlled antenna. The relay automatically extends the antenna when the radio is turned on. The antenna retracts again when the radio is turned off. This terminal can also be used for an external amplifier. Please find details in the amplifier's manual.
Connect External Amplifier
Connect an external amplifier via LINE OUT. Please find details in the amplifier's manual.
Installation and Removal
The unit can be installed in any ISO installation slot. Please contact the car manufacturer or the local dealer if your vehicle does not come with an ISO slot.
NOTE
Before installation, remove the two transport securing screws. Connect all cables before mounting the unit. Ensure all connections are correct and the system works properly.
Important additional information for installation of your car radio!
- The set is designed for an installation where the negative pole of the battery must be connected to the vehicle chassis. Please check this before installation.
- Please note for installation/connection of your set that not every vehicle is equipped with an "ISO connection". In this case we recommend the use of a vehicle-specific ISO adapter. Adapters are available from car accessory sellers and/or your car workshop.
- The connection of "Continuous +" (continuous current connection) may differ depending on the vehicle type. (However, this is required for storing of the radio stations.)
In order to assure all functions, installation according to these instructions is necessary. In case of doubt, please contact an authorized car workshop.
Because of the different vehicle types and vehicle manufacturers, correct wiring of the ISO connector is no assured even when the ISO plug connectors fit mechanically. Thus it may be necessary to change the electric connection or to use a vehicle-specific adaptor.
i NOTE
In case of correct connection, the radio can be switched on and off with the ignition. In case of possible loss of stored radio stations, the radio is not provided with the "Continuous +" required for station storage.
△ CAUTION
In case of connection to "Continuous +" without ignition, an unnecessary load may be caused for the car battery even when the radio is switched off. In the worst case, this may lead to discharge of the car battery.
- Depending on the vehicle type, interferences may occur during operation of the radio. These can be eliminated with an additional noise filter. Your set is already equipped with a noise filter as standard. In spite of this, interferences may be caused depending on the vehicle.
Noise filters are available from car accessory sellers and/or your car workshop.
- When installing your radio, take care that there is sufficient free space at the rear of the radio to assure sufficient cooling.
- There are two different standards for the antenna connection. The first one is the old one (50 Ohm) with a long projecting round contact on the vehicle side and a round socket on the radio side. The second one is the ISO standard antenna plug (150 Ohm). Adapters for both formats are offered by car accessory sellers and/or your car workshop.
NOTE
To be strictly observed for VW/Audi: The antenna of your vehicle may be an active antenna. This requires a voltage supply only provided by the original car radios. If this should be the case, please use an antenna adapter for phantom feed. Antenna adapters are available from car accessory sellers and/or your car workshop.
Mounting Instruction
◆ The correct tools are self-explanatory for a car hifi installation. ◆ Insert the unit into the ISO slot or select a location where you can reach all controls and the unit is not in the driver's way. ◆ Connect only to a properly installed 12 V battery. ◆ Connect only via the ISO connectors. ◆ Install the unit in such a way that no overheating is possible and the unit is well ventilated. If the installation angle exceeds 30 degrees, the unit might not perform well. Avoid installing the unit where it is subjected to high temperature, such as from direct sunlight, hot air from the heating ducts, or where subjected to dust, dirt, or excessive vibration. ◆ Contact your car manufacturer or the local dealer if vehicle modifications are necessary.
Installation in ISO Slot

◆ Remove sleeve (D) and frame (B) from the unit. Use installation keys (C), if necessary. ◆ Place the sleeve in the ISO slot. ◆ Bend the claws outward with a screwdriver for perfect fit.

◆ Check the sleeve for tight fit. ◆ Connect the ISO female connectors of the unit with the two ISO male connectors of the vehicle. ◆ Connect the antenna to the antenna connector at the rear of the unit. ◆ Secure the unit against theft, if necessary. Attach bolt and mounting strip with the fastening materials at the firewall.

◆ Carefully slide the unit into the sleeve until it locks into place. ◆ Press RESET (30) with a pen or other pointed object after all connections are made. ◆ Attach the front panel (A) as described under "Attach Front Panel".

CAUTION
Cable damage possible!
▶ To avoid cable damage, observe the cables when sliding the unit into the sleeve.
◆ Attach the frame.
Remove Unit
◆ Follow these instructions to remove the unit: ◆ Remove the frame. ◆ Insert left and right installation keys in the slots left and right (the claws are now bent back). ◆ Slide the unit out of the sleeve.

NOTE
▶ Unevenness of the casing can cause the claws to lock. Unlock the claws with the installation keys, if necessary.
Toyota or Nissan Installation

NOTE
▶ Sleeve, frame and mounting strip are not needed.
Use the threads on the side of the casing (A) to mount the unit on the vehicle bracket (supplied with your car). The holes are marked with T (for Toyota) and N (for Nissan).

◆ Loosen the mounting screws for the hooks left and right at the front of the unit and remove the hooks. ◆ Mount the brackets (B) with screws on the unit (D).
Connect External Audio Device
◆ Connect line out of the external audio device to AUX IN (16) jack on the front panel. ◆ Select playback mode for external device by repeatedly pressing PAIR/MOD (4) until AUX is displayed.
Fit steering wheel mount for remote control
You can mount the remote control onto the inside of the steering wheel. Follow the steps below:

1 Rubber strap 4 Screws 2 Mounting bracket 5 Remote control 3 Mounting bracket cover
◆ Use a Philips head screwdriver to loosen the screws (4), in order to disassemble the steering wheel mount into the parts shown above (1-4). ◆ Place the rubber strap around the steering wheel. When doing so, select the corresponding pre-punched holes to fasten the mount securely to the steering wheel. ◆ Place the cover (3) over the mounting bracket (2). Then tighten the screws (4) again.
Insert battery into remote control

NOTE
▶ Before using the remote control for the first time, you must insert the supplied battery to make the remote control ready for use. The life of the supplied batteries may be shortened due to storage conditions.
◆ Open the battery compartment (17) of the remote control.
◆ Place the battery into the battery compartment with the positive pole at the top. ◆ Close the battery compartment again. ◆ Plug the remote control onto the mounting bracket cover until it clicks into place.
Picture of the finished assembly, on the right hand side of the steering wheel

Start-up
To protect against theft remove the front panel. Do not keep the front panel in the car.
i NOTE
▶ Keep the front panel in its casing. ▶ Do not touch the contacts on the unit or on the front panel.
Attach Front Panel

◆ Set the control panel with the left-hand side first into the frame. - Then push the right-hand side in until it clicks into place. ◆ Flip the control panel up until it clicks into place.
◆ Ensure the front panel is attached properly. If the front panel is not attached properly this can cause malfunctions.
Detach Front Panel
◆ Press the release button (1) and flip the control panel down. - Then pull gently on the right-hand side of the control panel to detach the control panel.


Replace the remote control batteries
The battery of the remote control is a long life lithium cell. If the range of the remote control becomes shorter whilst in use, follow the steps below:
◆ Open the battery compartment (17) of the remote control. ◆ Replace the cell with a battery of the same type (CR 2025). Make sure that the polarity is correct. ◆ Close the battery compartment.
If the remote control is not in use for long periods, please remove the battery to prevent "leakage" of battery acid.
WARNING
Do not expose batteries to intense heat or direct sunlight. Never throw batteries into a fire. Risk of explosion!
△ CAUTION
Batteries should not be disposed of with household waste. Take spent batteries to designated collection points or to a dealer.
Operation
This chapter gives important operating instructions for the unit.
NOTE
Several buttons can be found on the unit as well as on the remote control. Identical buttons perform the same function. The buttons appearing in the following text are the buttons on the unit. The remote control signals are sent to the unit via infrared light. The transmission of the signals from the remote control to the unit may be impaired by direct sunlight on the IR sensor (6).
On/Off
◆ Press the button Ⓗ/ MUT (2) to switch on the set. The display is activated. ◆ Hold down the Ⓗ/ MUT (2) button to switch the unit off.
Settings
Volume

WARNING
Hearing damage due to high volume!
High volumes can permanently damage your hearing.
▶ Set a moderate volume.
◆ Press the ▲/▼ buttons (23) to adjust the volume.
Switch unit to mute
◆ Press the Ⓗ/ MUT (2) button to switch the unit to mute. MUTE flashes on the display. ◆ Press the Ⓗ/ MUT (2) button again to deactivate the function.
Sound Settings
◆ Press the SEL button (5). The current volume is displayed. Press the SEL button again to open the next setting.
The following settings are possible:
VOL - volume (0 to 100)
BAS - bass (-10 to +10)
TRB - treble (-10 to +10)
BAL - Balance (sound distribution between left and right speakers) (10L to 10R)
FAD - Fader (sound distribution between rear and front speakers) (10F to 10R)
◆ Press the ▲/▼ buttons (23) to change the displayed setting.
More settings via the SEL button
◆ Keep the SEL button (5) pressed for a few seconds to open more settings options. Press the SEL button again to open the next setting.
◆ Press the ▲/▼ buttons (23) to change the displayed setting.
The following settings are possible:
BEEP Key tone:
■ BEEP ON: The unit sounds a beep tone every time you press a button. ■ BEEP OFF: The unit sounds no beep tone.
P-VOL Adjusts the volume at which the unit should switch on.
AREA Region, when the unit is used.
Europe (EUR) or USA
i NOTE
▶ Changing this setting deletes all station presets.
HOUR Select the time display here.
24 hour (24 H) or 12 hour (12 H)
NOTE
▶ If 12 hours is selected, the display shows: AM = morning, PM = afternoon.
PCLK Select here if the time should be displayed when the unit is switched off.
Radio Reception Settings
◆ Keep the PTY button (17) pressed for several seconds to open more setting options. Press the PTY button again to open the next setting. ◆ Press the ▲/▼ buttons (23) to change the displayed setting.
The following settings are possible:
TA Traffic announcements
■ TA SEEK: With activated TA function the unit searches for a station with traffic announcements. ■ TA ALARM: No automatic station search. The unit sounds a beep tone if no traffic information is received and NO TP/TA is displayed. SEEK PI is displayed if the selected station does not transmit an RDS signal.
PI Moving into an area where two stations with identical AF, but different PI code (PI = program information) are received destabilizes reception. In this situation you have two options:
■ PI SOUND: To change stations the other station is played for less than one second. ■ PI MUTE: The other station is muted.
RETUNE Delay for automatic search with traffic announcements and/or program information:
■ S (Short) after approx. 30 seconds
■ L (Long) after approx. 90 seconds
MASK Setting to mask station during search:
■ DPI: Alternative frequencies with different PI code are excluded from the search. ■ ALL: Alternative frequencies with different PI code and no RDS information with high signal level are excluded from the search.
EON TA The unit can receive RDS EON data. EON means the transmission of additional programme information within a station group. In the event of a traffic announcement (TA), it will switch within a station group from a non-traffic broadcast to the corresponding traffic radio station of the station group.
■ DX: The unit attempts to receive the EON TA information from a receivable station and thus to improve the reception quality. ■ LO: This prevents switching to a programme with too weak a signal level.
TA VOL Traffic Announcement Volume
REG Some stations split their programme at certain times into regional programmes with different content.
■ ON: Only the regional programmes of the station are played. ■ OFF: National programmes are also played.
Loudness Function
◆ Press and hold 📞/ BND (26) to activate the Loudness function. LOUD ON is displayed. The Loudness function enhances the bass frequencies. ◆ Press and hold 📋/BND (26) again to deactivate the Loudness function. LOUD OFF is displayed.
Sound Settings
◆ Repeatedly press EQ/TA (19) to cycle through the settings FLAT, CLASSICS, POP M, ROCK M or DSP OFF. The selected setting is displayed.
Display Information
Repeatedly press DISP (20) to cycle through the following display information:
Time (is automatically set if RDS reception is enabled), radio station, programme type, frequency of the currently set radio station, information on file names (only during playback of a MP3 or WMA file).
NOTE
▶ If there is no corresponding information, PTY NONE is shown on the display. ▶ If the information is too long for the display, it is displayed as scrolling text.
Setting the time manually (in Radio Mode)
If the time should not be set automatically, proceed as follows:
◆ Press the DISP button (20) briefly until the time appears on the display. ◆ Keep the DISP button (20) pressed until the time flashes on the display. ◆ Use the ▶ button (23) to set the minutes. ◆ Use the ◀ button (23) to set the hours.
Reset Radio
To reset the unit to default settings, press RESET (30) with a pointed object, e.g., a pen.
Reset the unit when:
◆ using it for the first time after all cabling is done, ◆ malfunctions of buttons occur, ◆ error messages are displayed.
Radio Functions
Set RADIO Mode
◆ Repeatedly press PAIR/MOD (4) until frequency and band are displayed.
Select Frequency Band
◆ Press 📞/BND (26) to toggle between FM1, FM2, FM3, and AM. The selected frequency band is displayed.
Auto Search
◆ Press ▶ (23) or ◀ (23) to start auto search. SEARCH is displayed. Search stops if a station is found.
Manual Search
◆ Press and hold ▶ (23) or ◀ (23) until MANUAL is displayed. ◆ Press ▶ (23) or ◀ (23) to step through the FM frequency band in steps of 0.05 MHz and 9 kHz for AM until the desired frequency is displayed.
After two seconds of idling, the unit returns to auto search.
The display shows AUTO.
Save Station
For each frequency band, 6 station presets are available.
Press and hold the desired numeric button (8) for approximately 2 seconds to save the current station. A beep can be heard after successful storage (except when BEEP is set to OFF).
Access Saved Station
Press 📞/BND (26) to select the desired frequency band. Press one of the numeric buttons (8) to access the respective station.
Auto Save
Press 📞/BND (26) to select the desired frequency band.
Press and hold */+ / AS/PS (21). SEARCH is displayed. The unit starts automatic search. When a station is found (by the scan function), it will be played for a few seconds before the scan of the next station. The respective preset flashes. Press one of the numeric buttons (8) to access the respective station.
Cycle Through Saved Stations
Press */+ / AS/PS (21). All stations are briefly played in sequence. Press */+ / AS/PS (21) again when the desired station comes up. This station stays tuned in.
Alternative Frequencies (AF)
AF is an RDS (Radio Data System) function and is only available for FM stations. The unit searches in the background for the best frequency for the selected station.
◆ Press the AF/MON button (22) to turn this function on or off.
AF is displayed: Function is activated and RDS information is received.
AF flashes: No RDS information is received.
AF is not displayed: Function is deactivated.
Program Type (PTY)
Some FM stations transmit besides the station name also the program type.
You can search for stations with certain genres.
◆ Press the button PTY (17). ◆ Select the desired PTY code by pressing the ▲/▼ buttons (23). The PTY genre is displayed.
Such program types may be for example:
SPORT NEWS POP M CLASSICS
After selecting a PTY code press the ▶ button (23). PTY SEEK is shown on the display. The unit searches for stations which correspond to the set PTY code and stops if a corresponding station has been found. If no station with the respective PTY genre is found, PTY NONE is displayed. The PTY function is deactivated if the selected PTY genre is no longer received. Or press the button PTY (17) to end the function early.
Traffic Announcement (TA)
◆ Hold down the EQ/TA (19) button to switch this mode on or off. TA is displayed with activated mode. In the TA mode, switching from any other operation mode is done immediately to a radio station sending traffic announcements at that time. TRAFFIC is shown on the display. The volume level is adjusted to the value set in the menu for the transmission of traffic information. ◆ Briefly hold down the EQ/TA (19) button during playback of traffic radio to interrupt the TA function without switching the function off.
General CD Functions
Anti-shock Function (ESP - Electric Shock Protection)
The unit is equipped with an anti-shock function. This function compensates for bumps on uneven streets and ensures uninterrupted playback.
Insert and Remove CD
◆ Press the release button (1) to flip down the control panel. ◆ Insert the CD with the label up into the CD drive. Flip the control panel back up. The display shows CDP PLAY. CD playback starts. ◆ To eject the CD, press the ▲ (28) button when the control panel is flipped down. The CD is ejected. The unit switches to Radio mode. ◆ Remove the CD from the drive. The CD will be retracted again after 10 seconds if it is not removed from the slot; in this case playback does not start automatically.
NOTE
▶ Please note: A large variety of burner and compression software is on the market; there are differences in quality between CDs and home-burnt CDs. Furthermore, the music industry does not have fixed standards (copy protection). For this reason it can happen that in exceptional cases play-back problems for CDs and MP3/WMA CDs occur. This is not a malfunction of this unit.
Select CD Mode (with CD inserted)
◆ Repeatedly press PAIR/MOD (4) until CDP PLAY is displayed.
Skip Mode
◆ Press ▶ (23) or ◀ (23) to skip to the next or previous track. The title number and the elapsed playing time are shown on the display.
Fast Forward/Rewind
◆ Press and hold ▶ (23) or ◀ (23) to start fast forward or rewind function.
Pause
◆ Press PAU (9) to pause playback. S-PAUSE is shown on the display. ◆ Press PAU (9) again to resume playback.
Repeat Mode
◆ Press RPT (11) to repeat the current title. S-RPT and the current title are displayed. Press again to return to normal playback mode. Only for MP3 files and CDs in MP3 Format: Keep the RPT button (11) briefly pressed to repeat the current folder. D-RPT and the current title are shown. Press the button to restore normal playback.
Intro
Press SCN (10). The display shows S-SCAN. All tracks are played for 10 seconds in sequence. Press again to return to normal playback mode. Only for MP3 files and CDs in MP3 Format: Keep the SCN button (11) briefly pressed. All titles in the current folder are played in sequence for around 10 seconds. D-SCAN and the current title are shown on the display. Press the button to restore normal playback.
Random Playback
Press SHF (14). S-SHF and the current title are shown on the display. All tracks are played in random order. Press again to return to normal playback mode. Only for MP3 files and CDs in MP3 Format: Keep the SHF button (14) briefly pressed. A random playback of all titles of the current folder starts. D-SCAN and the current title are shown on the display. Press the button to restore normal playback.
Additional Functions MP3/WMA CDs
Skip Album
Press DIR - (13) or DIR + (12) to skip to the next or previous album. Playback starts automatically with the first track of the selected album.
Search Function
Title Search
Press */+ / AS/PS (21). Press the ▲/▼ buttons (23) until the desired title number is shown on the display. Press SEL (5) to confirm. The selected track is played.
File and Album Name Search
Press */+ / AS/PS (21) twice. Press the ▲/▼ buttons (23), until the desired symbol is shown on the display and confirm the setting by pressing the SEL button (5). Repeat this step until the desired characters are entered. Press 📞/ BND (26) to confirm. All tracks starting with the entered characters are displayed. Select the desired title by pressing the ▲/▼ button (23). Use the ▲/ND button to start playback (26).
Directory Search
Press */+ / AS/PS (21) three times. Press the ▲/▼ buttons (23) to select the desired directory. (ROOT = main directory) Confirm your selection by pressing the SEL button (5). Now select the desired title in the selected folder. Make your selection by pressing the ▲ buttons. Confirm your selection by pressing SEL. The title is searched and played.
USB Port
NOTE
The large variety of USB devices on the market prevents us from guaranteeing full compatibility with all USB devices. For this reason it can happen that in exceptional cases playback problems for USB media occur. This is not a malfunction of this unit. ▶ Please note: The USB port serves only for playback of memory media and not for charging of other external devices (like e.g. Smartphones). Only a low-power (100 mA) power supply can be assured. This USB port is not designed for use for example with external 2.5" hard disks, which may show start-up currents of up to 1100 mA. Use the provided AUX-IN jack for playback of music with your Smartphone, iPod, or iPhone respectively. Unless a music reproduction via Bluetooth is not supported.
Connect Media
◆ Open the protective cover of the USB port. ◆ Connect your USB device. The unit detects MP3 or WMA files on the media and USB PLAY is displayed. Playback starts automatically. ◆ To avoid dirt replace the protective cover if no USB device is connected.
Playback and Search Function
◆ Operation for file playback from external media device as well as the search function is similar to MP3 CDs. ◆ Repeatedly press PAIR/MOD (4) to select USB mode.
Card Reader (SD/MMC)
NOTE
The large variety of memory cards on the market prevent us from guaranteeing full compatibility with all memory cards. For this reason it can happen that in exceptional cases playback problems for memory cards occur. This is not a malfunction of this unit.
Connect Media
◆ Remove the control panel (see Page 85). ◆ Insert a memory card with the label pointing up into the card slot until it locks with a click. Insert the control panel again (see Page 85). The display shows SD PLAY. Playback of MP3 or WMA tracks on the memory cards starts automatically.
Removal of the storage medium
◆ Press the end of the memory card to remove it.
Playback and Search Function
◆ Operation for file playback from external media device as well as the search function is similar to MP3 CDs. ◆ Repeatedly press PAIR/MOD (4) to select card mode.
Phoning via Bluetooth
Bluetooth is a technology for wireless radio connection of devices over short distances. Bluetooth technology enables hands-free use of mobile phones. The driver can hold a conversation via his mobile phone without having to hold it to his ear.
This unit offers you the option of using a Bluetooth-enabled mobile phone. The function radius is limited to around 3 metres depending on the device.
For optimum sound quality during a telephone call, do not set the volume too high. Doing so may lead to feedback (whistling) from the speakers.
NOTE
The speaker setting depends on the installation positions of the speaker to the microphone and therefore cannot be specified.
Registering of devices (PAIRING)
Before you can make a call via the car radio, you must pair the devices.
◆ Keep the PAIR/MOD button (4) pressed until PAIRING appears on the display. ◆ Select the Bluetooth menu in your mobile phone and register the car radio in your mobile telephone. Refer to the user manual of your mobile phone. The unit "CarBT" appears as the selection in your mobile phone. Now enter the password "0000" in your mobile phone according to the device manufacturer, model and software. If the registration has been carried out successfully, PAIR OK and CONN OK appear on the display of your car radio. The symbol "⚙" is shown on the display (7). The car radio automatically switches to the BT AUDIO mode.
NOTE
▶ If the registration has not been successfully carried out, "NOT PAIR" appears on the car radio display. ▶ According to the mobile phone manufacturer, you must carry out the registration (PAIRING) again to register your mobile phone in the car radio. ▶ Bluetooth compatibility cannot be guaranteed for future models of mobile phone. ▶ To guarantee an optimum connection, check that the battery on your mobile phone is fully charged. ▶ Some makes of mobile phones have a power saving mode. Please deactivate power saving mode since otherwise there may be problems when phoning via Bluetooth. ▶ To be able to conduct an incoming or outgoing conversation, Bluetooth must remain activated on your mobile phone. Please refer to the user manual for your mobile phone.
NOTE
▶ Please ensure that you speak towards the integrated microphone (24). An external microphone cannot be connected.
Disconnect devices (#/SCAN/CON button (18))
- The devices are connected if you switch off the car radio via the ignition or on the unit.
- Keep the #/SCAN/CON button (18) pressed to disconnect the devices as well. DISCONN is shown on the display (7).
Reconnect devices (#/SCAN/CON button (18))
This unit supports automatic reconnection.
The requirements are:
- The devices have already been registered.
- Bluetooth is activated on your mobile phone.
- Your mobile phone supports this function.
After the car radio has been switched off and on again via the ignition or on the unit, the automatic reconnection is activated. This may take a few seconds. CONN TRY is shown on the display (7).
If the connection has been restored, CONN OK appears on the display.
NOTE
▶ Alternatively, you can also briefly keep the #/SCAN/CON button (18) pressed. CONN TRY is shown on the display (7) as well.
Phone menu settings
This menu can only be opened if a device has been successfully connected to the car radio.
◆ Press the T-MENU button (25). ◆ Press the T-MENU button again to open the next setting item. ◆ Press the ▲/▼ buttons (23) to change the displayed setting.
The following settings are available:
PRE NUM Here you have access to the 10 saved speed dial numbers. To allocate a speed dial number, follow the steps below:
◆ Use the ▲/▼ buttons (23) to select a memory location (0-9).
NOTE
▶ If a memory location is empty, EMPTY is shown on the display. If a memory location is already occupied, the stored phone number is displayed.
◆ Confirm your selection with the SEL button (5). DIAL → shown on the display. ◆ Enter with the help of the numeric buttons the desired phone number. ◆ Save the phone number by pressing the SEL button. SAVE OK is shown on the display.
NOTE
▶ If you have entered one or more numbers incorrectly, you can delete the numbers using the 📞/ BND button (26). Press briefly: The numbers are deleted individually. Keep pressed: All entered numbers are deleted. ▶ The saved speed dials are lost if the car radio has been reset using the RESET button (30).
Use a saved speed dial number
◆ Press the ↗ button (3). DIAL -s shown on the display. Now keep the corresponding numeric button pressed to call the desired phone number. CALLING appears on the display.
RECEIVED Here you can display a list of the last received phone numbers. Press the ↗ button (3) to call the displayed number.
DIALED Here you can display the last 10 dialed phone numbers.
MISSED Here you can display missed calls.
MANU Call answering settings
ANS / AUTO ■ MANU ANS: To accept a call you must press the ↗ button (3). ANS ■ AUTO ANS: The car radio accepts the call without having to press the button.
TALK You can set the desired talk volume here. VOLUME
End call
◆ Use the 📞/BND button (26) to end outgoing or incoming calls. CALL END is shown on the display.
i NOTE
▶ To reject an incoming call, press again the 📞/BND button (26).
Outgoing calls
◆ Press the ↗ button (3). DIAL → shown on the display. ◆ The phone number is entered using the numeric buttons. The entered phone number is shown on the display of the car radio.
NOTE
▶ If you have entered one or more numbers incorrectly, you can delete the numbers using the 📞/BND button (26). Press briefly: The numbers are deleted individually. Keep pressed: All entered numbers are deleted.
◆ To call the desired number, press afterwards the button (3). CALLING is shown on the display.
Redial
The unit saves the last dialed number. To retrieve this, follow the steps below:
◆ Press the ↗ button twice (3). LAST NUM and then the last selected phone number is shown on the display. ◆ Press the ↗ button (3) again to call the phone number.
Incoming calls
When there are incoming calls, a ring tone sounds from the speakers and if the caller has a CLIP "Calling Line Identification Presentation (Caller ID)" enabled phone, the caller number appears on the car radio display. Otherwise "RINGING" appears on the display.
◆ To be able to answer an incoming call, press the button (3). You can listen to the caller through via the speakers in your car.
Transfer call between car radio and mobile phone You can transfer a call again to your mobile phone.
◆ To do so, keep the T-MENU button (25) pressed. TRANSFER is shown on the display (7). The car radio activates the MUTE mode. Keep this button down again pressed to transfer the call to the car radio.
Music reproduction via A2DP (Advanced Audio Distribution Profile)
This involves a cross-manufacturer Bluetooth profile. Stereo audio signals are transferred wirelessly between the playback unit (source) and receiver unit. To be able to remote control the source, the playback unit must support the AVRCP profile (Audio Video Remote Control Profile).
Full functionality cannot be guaranteed due to different unit manufacturers, model and software versions.
◆ After you have connected the devices to each other, you can start music reproduction using the PAU button (9). You must start music reproduction beforehand on your mobile phone, depending on the device manufacturer, model and software versions. ◆ Use the ▶/◀ buttons (23) to select the next or previous music title.
Cleaning
Safety Precautions

CAUTION
Unit damage is possible
▶ Ensure that no moisture penetrates the unit, as this can cause irreparable damage.
Cleaning
◆ Clean the unit only with a slightly dampened cloth.
Troubleshooting
This chapter describes important instructions for troubleshooting. Please observe all instructions to avoid risks and damage.
Safety Precautions

WARNING
Please observe the following safety instructions to avoid risks and damage:
Electrical repairs must only be executed by specialized staff being trained by the manufacturer. Improper repairs can cause significant danger for the user and damage to the unit.
Troubleshooting
| Problem Possible cause Solution | ||
| Unit cannot be turned on. | The car ignition switch is not on. | If the power supply is properly connected to the car accessory terminal, switch the ignition key to "ACC". |
| No sound | The volume is set to minimum. | Increase the volume. |
| Wiring is improper. Check the wiring. | ||
| Disc cannot be loaded or is ejected. | Presence of disc inside the player. | Remove the disc in the player, and then load a new one. |
| Disc inserted in reverse direction. | Insert the compact disc with the label facing up. | |
| The disc is extremely dirty or defective. | Clean the disc or try to play a new one. | |
| CD format is not supported. | Insert a different CD. | |
| Mistake with home-burnt CD. | Check your CD in a different player. | |
| Problem Possible cause Solution | ||
| Disc cannot be loaded or is ejected. | Temperature inside the car is too high. | Cool off or wait until the ambient temperature returns to normal. |
| Condensation on the laser. | Turn the unit off for several hours until the moisture is evaporated. | |
| CD skips. | Installation angle over 30°. | Decrease installation angle to less than 30°. |
| CD dirty or damaged. | Clean the CD or play different CD. | |
| The operation keys do not work. | The built-in micro-computer is not operating properly due to noise. | Press RESET (30). |
| The front panel is not correctly installed. | Remove the front panel, press RESET button and install again. | |
| The radio does not work or no auto scan. | The antenna cable is not connected. | Insert the antenna cable firmly. |
| The signals are too weak. | Select a station manually. | |
| Station memory does not work. | Terminal 4 of ISO connector A (continuous positive) not properly connected. | Check the cabling. Observe chapter "Connections". |
| USB device does not work. | The USB port is only for proper USB devices. Not all available devices comply with the standards. Possibly a non-standard device is connected. | Connect a USB-conform device. Ensure the media is formatted in FAT32 format. |
| SD/MMC memory card does not work. | The unit cannot read the card. | Check the card. Insert it with the text side face up. Ensure the media is formatted in FAT32 format. |
| No connection can be made via Bluetooth. | Bluetooth is switched off on your mobile phone. | Activate Bluetooth on your mobile phone. |
Technical Data
General
Power supply 12 V =
Power consumption 15 A (max.)
Operating temperature +5 ... +40 °C
Humidity (no condensation) 5 - 90 %
Dimensions (L x W x H) 181 x 163 x 52 mm
Weight 1.33 kg
Max. power output 4 x 40 W (PMPO)
Sound control
- Bass (at 100 Hz) ±10 dB
- Treble (at 10 kHz) ±10 dB
Radio
Frequency range FM 87.5 - 108 MHz
Sensitivity (FM) 10 μV
IF (FM) 10.7 MHz
Channel separation >25 dB
Frequency range (AM) 522 - 1620 kHz
IF (AM) 450 kHz
Sensitivity (AM) 36 dBu
CD Player
S/N R > 55 dB
Channel separation > 50 dB
Frequency response 40 Hz - 18 kHz
Requirements MP3/WMA format
Compression rate
16 - 320 kBit/s
Sampling rate
44.1 kHz
Declaration of Conformity
Herewith, ETV – Elektro-Technische Vertriebsgesellschaft mbH, declares that the device AR 4021 BT complies with the basic requirements of the radio interference directive (electromagnetic compatibility) of vehicles 2004/104/EG. A copy of the declaration of conformity can be ordered at the above address.
Index
A
A2DP 91
Access Saved Station 87
Alternative frequencies (AF)......88
Anti-shock function 88
Attach front panel....85
Auto Antenna Power Supply A5 (ISO A) 82
Auto save 87
Auto search....87
B
Bluetooth....90
C
Configuration ISO Connectors 82
Connect external amplifier....82
Cycle Through Saved Stations....88
D
Detach front panel....85
DISP button....87
E
EQ button 87
F
Fast forward/rewind 88
|
Insert CD....88
Installation in ISO Slot 83
Installation (Toyota or Nissan)....84
Intro....89
L
Local programmes (REG)......87
Loudness function....87
M
Manual search....87
0
Off 86
On....86
P
Pause....88
Program type (PTY) 88
R
Random playback....89
Rear panel connections....82
Removal....82
Remove CD....88
Repeat mode 88
RESET button....87
S
Save station 87
Scope of delivery....81
Search Function 89
Select CD mode 88
Select frequency band....87
Skip album....89
Skip Mode....88
Set RADIO Mode 87
Settings
AREA....86
Balance....86
Bass 86
BEEP....86
EON TA....87
Fader....86
HOUR 86
MASK....87
PCLK86
PI....86
P-VOL....86
REG 87
RETUNE....86
TA....86
TA VOL....87
Treble....86
Volume 86
T
Traffic Announcement (TA) 88
Table of Contents
Introduction 96
Foreword....96
(Advanced Audio Distribution Profile)....110
Cleaning ....110
22 Button 7/AF/MON:
Starting up
