RP4.2TY13 - Car audio interface PAC - Free user manual and instructions

Brand	PAC
Model	RP4.2TY13
Product Type	Uncategorized Electronic Device
Dimensions (L x W x H)	15 x 10 x 5 cm
Weight	0.3 kg
Power Supply	5V DC, 1A
Main Functions	Standard operation as per user manual
Display Type	LED indicator
Control Method	Buttons
Connectivity	None
Material	Plastic
Color	Black
Operating Temperature	0-40°C
Storage Temperature	-20-60°C
Battery Type	Not applicable (wired)
Safety Certifications	CE, RoHS
Warranty	1 year
Included Accessories	User manual, power adapter

Frequently Asked Questions - RP4.2TY13 PAC

How do I turn on the device?

Press and hold the power button for 3 seconds until the LED indicator lights up.

What should I do if the device does not power on?

Check the power adapter connection and ensure the outlet is working. If the issue persists, contact customer support.

How do I clean the device?

Use a soft, dry cloth to wipe the exterior. Do not use any liquids or abrasive cleaners.

Is the device waterproof?

No, the device is not waterproof. Keep it away from water and moisture.

Can I use the device with a different power adapter?

Only use the provided power adapter to avoid damage. Using an incompatible adapter may void the warranty.

What is the recommended operating temperature?

The device operates best between 0°C and 40°C (32°F to 104°F).

How do I reset the device?

To reset, press and hold the reset button (if available) for 10 seconds or unplug the power for 1 minute.

Where can I find the serial number?

The serial number is located on the bottom of the device.

Is there a warranty?

Yes, the device comes with a 1-year warranty. Please retain the purchase receipt for warranty claims.

What should I do if the device behaves unexpectedly?

Turn off the device, disconnect power, wait 30 seconds, then reconnect and restart. If problems continue, consult the user manual or contact support.

USER MANUAL RP4.2TY13 PAC

Introduction and Features

The RP4.2-TY13 interface allows the replacement of a factory radio in select Toyota vehicles and will retain factory features such as steering wheel controls (SWC), rear camera and the factory audio amplifier. This interface also allows you to program two radio functions to each SWC button by using short press long press dual command functionality, and also provides outputs such as: vehicle speed signal (VSS), illumination, reverse trigger and parking brake.

Important Notes

1. Adjustment of the vehicle settings through the original radio's vehicle settings menu will be disabled after installation of the new radio. It is advised to make sure all settings are as desired prior to removal of the original radio.
2. The RP4.2-TY13 does not retain Rear Seat Entertainment.
3. Speaker fading on factory amplified systems is only supported with the "amplified output" connection of the RP4.2-TY13.
4. When using real time fade, if the fader setting is biased more to the front or rear, as the radio turns on the sound may begin at the default setting and then quickly transition to your custom setting.
5. Aftermarket radio features such as High Pass Filters (crossovers), DSP or "Network Mode" will interfere with proper fader function. In order for the RP4.2-TY13's fader function to work, the audio from the aftermarket radio's output must match so it can compare the front and rear audio levels and determine the proper fader setting for the factory amplifier.
6. A USB adapter must be purchased in order to retain the factory USB port. Please refer to www.pac-audio.com to see which harness you will need.
7. To retain AM/FM Radio and SiriusXM Radio, additional parts and adapters are required and sold separately.

Module Layout

Interface & Harness Connections

Close-up of a white and red electrical connector with yellow wires against a dark textured background (no text or symbols visible)

Interface Connector 1

Close-up of a white plastic connector with red, yellow, and green wires against a dark textured background (no text or symbols visible)

Interface Connector 2 Interface Interface Connector 3

Close-up of a white connector with purple and teal wires against a dark textured background (no text or symbols visible)

Close-up of a white electrical connector with multicolored wires against a dark textured background (no text or symbols visible)

Plug Interface Connectors 1, 2 and 4 into the appropriate ports on the RP4.2-TY13 interface (using the diagram on page 1 or the label on the bottom of the RP4.2-TY13 module). The Connector 3 connection will be dependent upon whether or not the vehicle has a factory amplified system. Plug Connector 3 into the appropriate port on the RP4.2-TY13; Amplified if the vehicle has a factory amplifier, Non-Amplified for base audio.

Connect the RPA-VA1 Video Adapter to the 6-pin plug on the RP4.2-TY13 harness.

Close-up of a black electronic component labeled 'NOM-VM1 (Rev. 1)' with wires, placed on a textured surface (no readable text beyond label)

RPA-VA1

Installation Steps

Set DIP switches that correspond with your radio to the ON position. Set all other DIP switches to the OFF position.

Alpine	JVC	Kenwood / Lightning Audio	Clarion / Stinger	2-Wire Resistive	Pioneer / Other*	Sony	Fusion
1	2	1 & 2	3	2 & 3	1, 2, & 3	4	1 & 4

*Other - Dual / Axxera (these brands could also have 2-wire resistive), Jensen, Rockford Fosgate

1. Set the Radio Select DIP switches according to the radio you are installing.
2. Wire the aftermarket radio to the RP4.2-TY13 Interface 4 harness according to the wiring connections chart on this page.
3. Connect the appropriate SWC Output to the aftermarket radio (if applicable).
4. Connect the OEM Camera RCA to the aftermarket radio (if applicable).
5. Once all connections have been made, connect the white, gray and black Vehicle Connectors to the matching connectors in the vehicle.
6. Turn the ignition on. The LED on the interface will turn on and the +12v accessory wire will turn on. For factory amplified systems, see "Testing and Verification" section on page 5 for details on how to set the gain.
7. If the radio does not turn on and the LED on the interface is solid orange, check the DIP switches on the side of the interface to make sure they are not all in the on position.
8. If you wish to reassign functions to the SWC, or utilize short press, long press dual command functionality, follow the programming instructions starting on the following page.

Aftermarket Radio Wiring Table Wires from Interface Connector 4

Purple Rear	R + input
Purple / Black Rear R - input
Green Rear L + input
Green / Black Rear L - input
Gray Front R + input
Gray / Black Front R - input
White Front L + input
White / Black Front L - input
Blue / Yellow SWC Output / Key 1
Brown SWC Output / Key 2
3.5 mm Jack SWC Output
Pink Vehicle SpeedSense Output
Light Green	Parking BrakeOutput
Violet / White	Reverse SignalOutput
Orange / White	Illumination Output
Blue / White	Amp Turn On Input
Blue	Not Used

Steering Wheel Controls

Default Steering Wheel Control Programming

IMPORTANT! The interface comes pre-programmed for all of the vehicles factory SWC functions and does not require programming unless you wish to re-assign the SWC functions or utilize short press long press dual command functionality. The SWC can always be restored to default settings by pressing and releasing the program button on the side of the interface once and waiting 7 seconds for the LED to flash 3 times.

Default SWC Button Assignments

	Alpine JVC K	Kenwood Clarion Pioneer Sony Fusion
Volume + Volume	Volume + Volume	e + Volume +	Volume + Volume	e + Volume +
Volume -	Volume -	Volume -	Volume -	Volume -	Volume -	Volume -	Volume -
Mode	Source	Source	Source	Source	Source	Source	Source
Track Up	Track Up	Track Up	Track Up	Track Up	Track Up	Track Up	Track Up
Track Down	Track Down	Track Down	Track Down	Track Down	Track Down	Track Down	Track Down
Voice	Voice	Voice	Voice	Voice	Voice	Voice	Mute
Answer	Receive	Receive	Off Hook	Send	Answer	Answer	Power
End	End	Reject	On Hook	End	End	Reject/Source	N/P

Optional Steering Wheel Control Programming

If you wish to re-assign the SWC functions, utilize short press long press dual command functionality, the interface must be programmed in the specific order shown in the chart on page 4. If you come across a function in the chart that your steering wheel does not have, or you do not want to program, press and release the programming button on the side of the interface to skip that function. The LED will flash off and on confirming that you have successfully skipped that function and are ready to proceed to the next one.

Short Press Long Press Dual Command Functionality

This feature allows you to assign two aftermarket radio functions to each of the vehicles SWC buttons. It can be used with as many of the buttons as the user likes or none at all. When this functionality is implemented, quickly pressing and releasing a SWC button will initiate the short press command while pressing and holding a SWC button for longer than two seconds will initiate the long press command. Please note that no long press commands are programmed by default. If you wish to assign dual command functionality to the SWC please follow the programming steps on the next page.

Steering Wheel Controls (cont.)

Optional SWC Programming Procedure

1. Turn the key to the ignition position.
2. Press and release programming button on the side of the interface. The Status LED will turn green.
3. Within 7 seconds, press the button that is to be learned on the steering wheel. The LED will turn red when the button is pressed.

At this point you have two options:

A. For short press functionality: Release the button within 1.5 seconds. The LED will turn back on.
B. For long press functionality: Hold the button until the LED starts blinking. Release the button and the LED will go back to solid.

1. If you need to program more buttons, repeat step 3 for each additional audio function on the steering wheel.

2. If you come across a function in the chart that your steering wheel does not have, or you do not want to program, press and release the program button on the side of the interface to skip that function.

3. Once programming is completed, wait seven seconds. The LED will flash three times indicating end of programming.

4. Test the interface for proper functionality. Whenever a SWC is pressed the LED on the interface should blink. If any function does not work, repeat the programming steps.

Optional Programming Order

	Alpine JVC		Kenwood / Lightning Audio	Clarion / Nakamichi	2-Wire Resistive	Pioneer Other * Sony Fusion
1 Volume + Volume +			Volume +	Volume +	No specific programming order. Please refer to the owners manual of your particular radio for programming instructions..	Volume + Volume + Volume + Volume +
2 Volume - Volume -			Volume -	Volume -		Volume - Volume - Volume - Volume -
3	Mute Mute		Mute	Mute		Mute	Mute	Mute Mute
4	Preset +	Source	Source	Source		Preset +	Preset +	Preset +	Source
5	Preset -	Track +	Play	Search +		Preset - Preset - Preset - Track +
6	Source	Track -	Track +	Search -		Source	Source	Source / End Call Track -
7	Track +	Band / Disc +	Track -	Band		Track +	Track +	Track +	Audio
8	Track -	Preset / Disc -	Disc / FM +	Send / End		Track -	Track -	Track -	Power
9	Power	Select	Disc / AM -	Send		Band Band		Band
10	Enter / Play	Attenuation	Answer	End		Phone Menu	Answer **	Power / End Call
11	Band / Program	Phone Receive	Voice Dial	VR		Answer Call	End **	Voice Dial / Answer / End Call
12	Receive	Phone Reject	On Hook			End Call	PTT **	VR (Android Auto & Car Play) Answer / End Call**
13 End	Voice Dial		Off Hook			VR
14	VR	Power	Mute
15			Preset +
* Advent, Boyo, Dual, Lightning Audio, Jensen, Rockford Fosgate & Visteon ** Jensen & Advent ONLY *** XAV-AX100 Only
Please Note: On any entry with multiple commands, the commands shown are source dependent.

SWC Re-Calibration Procedure

1. Turn the key to the ignition position.
2. Press and hold the programming button until the LED begins blinking amber. When the LED begins blinking, release the programming button. The LED will light solid amber.
3. Within 7 seconds, press and hold the button that is to be learned on the steering wheel. The LED will turn off when the button is pressed and begin blinking when the value has been learned. Once the LED begins blinking, release the button. Please Note: the buttons must be calibrated in the order shown in the chart. If you press the wrong button the LED will not respond at all.
4. If you need to program more buttons, repeat step 3 for each additional audio function on the steering wheel.
5. If you come across a function in the chart that your steering wheel does not have, press and release the program button on the side of the interface to skip that function.
6. Once programming is completed, wait seven seconds. The LED will flash indicating end of programming.
7. Test the interface for proper functionality. Whenever a SWC is pressed the LED on the interface should blink. If any function does not work, repeat the programming steps.

Re-Calibration Programming Order

Volume Up

Volume Down

Seek Up

Seek Down

Mode

Voice

Phone Answer

Phone Hang Up

After you have re-calibrated the SWC buttons, the default SWC button assignments will be the same as what is listed in the chart on page 3. If you wish to re-assign button functions you must also go through the programming listed above (Optional SWC Programming Procedure).

Testing and Verification

1. Turn the ignition on. The LED on the interface will turn on and the +12v accessory wire will turn on.
2. Turn on the radio and check volume, balance and fade. If you do not hear any audio you may need to cycle the ignition to initialize the factory amplifier.
3. If the overall volume is too low, use the gain adjustment on the side of the RP4.2 interface to set it to the desired level. The best way to do this is to turn the volume on the radio to 3/4 volume, then turn the gain on the RP4.2 until some distortion is heard, then back it down a little.
4. If you have a JBL system and there is no audio, please make sure the Blue / White wire in the radio connector is hooked up properly. If there is still no audio, reset the interface according to the procedure in the next section.
5. If fading is acting inconsistent, please ensure that all speakers are connected to the proper polarity.
6. Verify that all SWC are functioning properly. If any of the SWC are not functioning properly you may need to reset the interface or follow the re-calibration procedure above.
7. The LED and radio will turn off when the ignition is turned off.

Restoring Factory Settings

You can restore the interface to factory default settings by pressing and holding the programming button on the side of the module until the status LED starts blinking red. Once the LED starts blinking red, release the button. You must release the button while the LED is blinking red in order to perform the reset. Please note, the LED will go through two stages before it starts blinking red. First it will blink green, then amber, then red.

This reset will restore the following settings to their factory defaults:

• SWC Mapping
  • Factory Amplifier Settings
  • Real Time Fade will be reset to on

RadioPRO App

Use of the RadioPRO App allows you to do the following:

• Configure User Interface Options:
• Factory amplifier settings (Bass, Mid, Treble, Gain, Fader and Balance)
  • Real Time Fading
• Update Product Firmware
• Read Firmware/Hardware Versions

PLEASE NOTE:

The interface must be connected to the vehicle when using the following features of the Radio PRO App:

• Factory Amplifier Settings

The interface does not need to be connected to the vehicle when using the following features of the Radio PRO App:

- Firmware Updates

- Reading firmware/hardware versions

- Firmware Updates - Reading firmware/hardware versions

RadioPRO App (cont.)

Infotainment/Factory Amplifier Settings

The RadioPRO app will also allow you to adjust the settings of the factory amplifier. You can adjust Amp Gain, Fader, Balance, Bass, Mid and Treble and real time fade. When real time fade is enabled in amplified systems, it will allow fading to be controlled directly from the aftermarket radio. Restoring factory settings on the module will default all values back to middle.

Firmware Updates

The RadioPRO app will also allow you to update the interface with new firmware as it becomes available. Please visit www.pac-audio.com or contact our tech support department to see if there is a firmware update for your interface.

In order to update the interface all DIP switches must be set to the down position. Connect the interface to your PC and select "Update Firmware". Now select "Select File". Finally, browse to the place where you saved the file and select it. This will begin the updating process. Once finished, disconnect the interface from the PC and set the DIP switches back according to the radio you have installed.

Technical Support

Email: [e-mail]

Phone: [phone]

Chat: PAC-Audio.com

Warranty

LIMITED WARRANTY

The quality controls used to manufacture PAC products are designed to ensure your complete satisfaction.

This warranty applies only to the original owner of PAC products purchased from an authorized PAC dealer. It covers PAC products that, upon inspection by authorized PAC personnel, are found to have failed in normal use due to defects in material or workmanship. This warranty does not cover installation expenses.

Attempting to service or modify our products, or operate them outside their recommended usage will render this WARRANTY VOID.

Unless prescribed by law, PAC is not liable for any personal injury, property damage and/or incidental or consequential damages (including water damage) resulting from product malfunctions, defects and/or misuse. PAC is also not liable for any products that are altered or improperly installed.

WARRANTY PERIOD AND PROCESS

Within the first 12 months from date of purchase, subject to the conditions above, PAC will repair or replace product at its sole discretion if it is found to be defective in material or workmanship. Product must be returned to an authorized PAC dealer with PROOF OF PURCHASE.