ACPMB-50W - Car Multimedia Interface CRUX - Free user manual and instructions

Product Type	Automotive Multimedia Interface
Brand	CRUX
Model	ACPMB-50W
Compatibility	Mercedes-Benz NTG5 systems (A, B, C, CLA, CLS, GLA, GLC, GLE, GLS, S-Class; 2015-2018)
Main Function	Smart-Play Integration: adds wired/wireless Android Auto and Apple CarPlay
Camera Support	Front and rear aftermarket camera inputs; retains OEM backup camera
Video Connection	4K HDMI input (from Smart-Play module) and LVDS cable to factory radio
Audio Connection	USB to 3.5mm Aux adapter for audio input; factory USB port used
Microphone	External 3.5mm microphone for hands-free calls and voice commands
Control	Steering wheel controls (long press Back button) to toggle Smart-Play mode; OSD Control Pad for settings
Power Supply	12V DC (tapped from cigarette lighter wires or factory quadlock)
DIP Switch Settings	Adjustable per vehicle system and screen size (NTG5.1, 5.2, 5.5)
Wireless Connectivity	Wi-Fi and Bluetooth for Android Auto / Apple CarPlay wireless connection
Wired Connectivity	USB extension cable for wired Android Auto / CarPlay (optional)
Dynamic Parking Guide Lines	Yes, calibration requires turning steering wheel full left/right then center
Front Camera Auto-Show	Automatically when shifting from Reverse to Drive; delay adjustable (1-60 seconds)
OSD Menu	On-Screen Display accessed via OSD Control Pad for LVDS input, camera settings, save & reboot
Parts Included	ACPMB-50W module, main harness, video harness, LVDS cable, USB to Aux adapter, 4K HDMI cable, microphone, OSD controller, 3.5mm Aux cable, optional USB cable, power harness
Installation	Professional installation recommended; involves removing radio, tapping into factory wiring, connecting LVDS and quadlock
Reparability	Replaceable OSD controller, harnesses, and cables; module is sealed

Frequently Asked Questions - ACPMB-50W CRUX

How do I enter Smart-Play mode on my CRUX ACPMB-50W?

Press and hold the Back button (↩) on your steering wheel controls for 2 seconds. To exit, do the same.

How do I connect my iPhone for wireless CarPlay?

Enable Wi-Fi and Bluetooth on your iPhone. The module broadcasts a Wi-Fi network named "NV17W-WIFI". Connect to it, then follow on-screen prompts.

How do I set up the front camera?

Connect the front camera to the appropriate wires (red power, black ground, green trigger). In the OSD menu, set LVDS Input to ON and configure camera delay. The front camera will auto-show when shifting from Reverse to Drive.

What should I do if the screen is black after installation?

Verify secure LVDS cable connections to the module and radio. Check for damaged cables. Ensure the HDMI cable is properly connected. Confirm power to the Smart-Play module (red LED on both boxes).

How do I adjust the DIP switches on the CRUX ACPMB-50W?

The DIP switch settings are based on your vehicle's system and screen size. Refer to the table: For NTG5.1 8" or 7", all switches OFF. For NTG5.2 8.4", set switch 4 ON. For NTG5.2 7", set switches 4 and 7 ON. For NTG5.5 12.3", set switch 3 ON. ON is down, OFF is up.

Why is there no sound from CarPlay/Android Auto?

Ensure the AUX cable is connected from the Smart-Play module to the USB-to-Aux adapter plugged into the factory USB port. Set your car's media source to AUX. Check that the phone's audio output is routed to the CarPlay module.

How do I calibrate dynamic parking guide lines?

In the OSD menu, go to Rear Input > Rear Set and turn ON Warning LANG. Then go to Save&Reboot. Set parking brake, start car, shift to Reverse, turn steering wheel fully left then right, then center. The system calibrates automatically.

Can I use the OEM backup camera with this interface?

Yes, the ACPMB-50W retains the OEM backup camera functionality. It also adds inputs for aftermarket front and rear cameras.

How do I use the OSD Control Pad?

Connect the OSD Control Pad to the module. The OSD menu automatically appears. Use it to adjust settings like LVDS input, camera delay, and guide lines. After making changes, select Save&Reboot and then unplug the pad.

What vehicles are compatible with the CRUX ACPMB-50W?

It fits Mercedes-Benz NTG5 systems from 2015-2018, including A-class (W176), B-class (W246), C-class (W205), CLA (C117), CLS (W218), GLA (X156), GLC (X253), GLE (C292), GLS (X166), ML (W166), E-class (W212), SLC (R172), SL (R231), G (W463), and more.

USER MANUAL ACPMB-50W CRUX

• Smart-Play Integration system allows connection of Android and other smartphones to the Mercedes Benz NTG5 infotainment system.
• Integrates wired/ wireless Android Auto and carplay
• Adds front and rear aftermarket camera inputs.
• Retains functionality of the OEM backup camera if present.
• Includes a USB-3.5MM auxiliary audio adapter.

PARTS INCLUDED:

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ACPMB-50W Module Vehicle Harnesses Smart-Play Interface Module

Coiled electronic components including wires, connectors, and a battery pack (no visible text or symbols)

Video Harness

LVDS Cable

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USB to Aux Adapter

4K HDMI Cable Microphone

Black cordless earphone with attached microphone and clip, no visible text or symbols

OSD Controller

3.5mm Aux Cable

Coiled black cable with two connectors, no visible text or symbols

Optional USB Cable (Sold Separately)

Smart-Play Module Power Harness

WIRING DIAGRAM:

graph TD
    A["Factory USB port"] --> B["USB 3.5MM Audio Adapter"]
    B --> C["Aux Cable"]
    C --> D["HDMI Power Port"]
    D --> E["CRUX® Smart-Play Module"]
    E --> F["Microphone"]
    E --> G["USB Extension Cable"]
    E --> H["OEM Smartphone Cable"]
    I["To Cigarette lighter wires"] --> J["Red (ACC)"]
    J --> K["+12V ACC (Red)"]
    K --> L["Brown (Ground)"]
    K --> M["GND (Black)"]
    N["Main"] --> O["CRUX® ACPMB-50"]
    O --> P["LVDS Cable"]
    P --> Q["To Radio From Radio"]
    R["Front Camera Manual Trigger"] --> S["Blue"]
    T["Front Camera"] --> U["Red"]
    V["12V Power & Ground"] --> W["Black"]
    X["FRONT CAMERA"] --> Y["Red"]
    Z["REAR CAMERA"] --> AA["Black"]
    AB["Rear Camera"] --> AC["Green"]
    AD["12V Power & Ground"] --> AE["Red"]
    AF["Rear Camera Manual Trigger"] --> AG["Green"]
    AH["OSD Control Pad is used to adjust the settings. Must be unplugged and stored after use."] --> AI["5A Fuse"]
    AI --> AJ["CAN Extension Board"]
    AJ --> AK["From the 12 pin insert on Quadlock connector"]
    AJ --> AL["To the 12 pin insert on Quadlock connector"]
    AJ --> AM["Red Wire (+12V)"]
    AJ --> AN["Red Wire (+12V Battery)"]
    AJ --> AO["From factory Quadlock Connector"]
    AJ --> AP["Brown Wire (ground)"]

DIP SWITCH SETTINGS:

Note: ON is down and OFF is up

DIP SETTING SYSTEM SCREEN SIZE VEHICLE
1 to 8 ALL	OFF NTG5.1 8" A, B	CLA, CLS, GLA, GLE, GLS
1 to 8 ALL	OFF NTG5.1 7" A, B	CLA, CLS, GLA, GLE, GLS
4 ON NTG5.2 8.4" C, GLC
4 & 7 ON NTG5.2 7" C, V, GLC
3 ON NTG5.5 12.3" S Class

INSTALLATION INSTRUCTIONS:

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1. Remove plastic trim.

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1. Remove the 2 T20 torx screws. 3.

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Carefully pull out up the whole center panel.

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1. Remove the 2 screws holding the radio.

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1. Pull out the radio. 6. Unplug the

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Quadlock connector.

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1. Remove the 12-pin connector (black) from the Quadlock connector.

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1. Remove the insert from the 12-pin connector.

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1. Install the 12-pin insert from the ACPMB-50W harness to the 12-pin connector.

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1. Plug the 12-pin connector back to the Quadlock connector.

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1. Plug in the factory 12-pin insert to the ACPMB-50W harness mate.

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1. Plug the Quadlock connector back to the radio.

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1. Tap the power wires on the ACPMB-50W harness to the Quad-lock connector wires as follows: RED to Red (Battery) Black to Brown (Ground)

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1. Unplug the blue LVDS connector from the radio and plug it to the left side. LVDS port on the module. Note every vehicle might not have the same color LVDS connector.

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1. Plug one end of the LVDS cable provided in the kit to the right side LVDS port on the module.

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1. Plug the other end of the LVDS cable to the radio.

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1. Install the front and rear cameras (if applicable) and power using the power wires provided.

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1. Tap the Smart-Play module power wires to the cigarette lighter wires as follows: RED to Red (ACC) Black to Brown (Ground)

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1. Plug in the 4K HDMI cable provided with the kit to the Smart-Play module.

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1. Plug the 2 pin power wire connector to the Smart-Play module.

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Line Out (Aux) HDMI Power Port

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USB Mic In

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1. Plug the other end of the 4K HDMI cable to the ACPMB-50W module HDMI port (left side).

1. Plug in the optional USB extension cable to the Smart-Play module for wired AA/ Carplay

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1. Run the other end of the USB extension cable to an accessible location.

1. Plug one end of the Aux cable to the Smart-Play module and other end to the USB to Aux adapter.

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1. Plug the USB to Aux adapter to the factory USB port.

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1. Plug in the main power harness to the ACPMB-50W module.

OPERATION:

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To enter and exit the Smart-Play mode, press the back button ↩ on the steering wheel controls for 2 seconds.

1 = Short press for Voice Command
2 = Short press for Return
3 = Rotate and push knob for Smart-Play navigation

ON SCREEN DISPLAY (OSD) SETTINGS:

The OSD Setting Screen automatically pops up when the OSD Control Pad is connected.

Use the OSD menu to make the necessary settings. Remember to Run Save&Reboot after the settings are made. Unplug the OSD Control Pad after setting the cameras and keep it in a secure location in case it is needed to change the settings.

SMART-PLAY SETTING

After plugging in the OSD controller, navigate down to LVDS Input and set to ON. Push RIGHT button to go to the next menu.

Set Navi Brand to NV17 Nav

igate the OSD back the main menu and go to Save&Reboot then Run.

WIRELESS CARPLAY/WIRELESS ANDROID AUTO CONNECTION SETTINGS

Android Auto Wireless connection

Have Android AutoLink OFF

Have wifi & Bluetooth enabled.

Apple Carplay Wireless Connection

Have wifi & Bluetooth Connected

Wait for screen that will state Use Carplay with "NV17W-WIFI"

SMARTPHONE MIRRORING CONNECTION

Smartphone Mirroring Connection for Iphones

Enable Wi-Fi and connect to "NV17W" module

Open Control Center and Tap Screen Mirroring
a. On iPhone X or later; iPad with iPadOS 13 or later: Swipe down from the upper-right corner of the screen.
b. On iPhone 8 or earlier or IOS 11 or earlier: Swipe up from the bottom edge of screen

Airplay will pull up on screen mirroring app

Select "Airplay"

Smartphone Mirroring Connection for Androids

Enable Android AutoLink

Download Vehicle multimedia entertainment APP Autolink Pro APK

Download AutoLink Pro APP Available in the "Play Store"

On AutoLink Pro APP find the Device and Tap to Connect

Select "Start Now"

REAR AND FRONT CAMERA SETTING

DYNAMIC PARKING GUIDE LINES

To turn ON the Dynamic Parking Guide Lines, go the Rear Input > Rear Set and turn ON Warning LANG. Go back to the root menu and Run Save&Reboot. Remember to unplug the OSD Control Pad otherwise the unit will not function properly. Set the parking brake on, start the car, put the gear in reverse, turn the steering wheel all the way to the left and all the way to right then put it in the center. The ACPMB-50W will calibrate automatically.

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FRONT CAMERA SETTINGS

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The front Camera will automatically show on the screen when the gear is put to Drive from Reverse. Set the delay time on the OSD menu. Delay time can be set from 1 to 60 seconds after a putting the car to drive from reverse.

VEHICLE APPLICATIONS:

Mercedes Benz
2015 - 2017	A-class (W176)	2017 - Up	GL (X166)
2015 - 2018	B-class (W24)	2015 - Up	GLA (X156)
2015 - Up	C-class (W205)	2015 - Up	GLC (X253)
2015 - 2018	CLA (C117)	2015 - Up	GLE (C292)
2015 - 2017	CLS (W218)	2015 - 2018	ML (W166)
2015 - 2016	E-class (W212)	2016 - 2018	SL (R231)
2017 - Up	G (W463)	2016 - 2018	SLC (R172)

Android Auto Screen

CarPlay Screen

TROUBLESHOOTING

*If your call audio does not use car's bluetooth, manually change it on the phone to select the vehicle during the call, then the phone should remember the last used setting

Changing the call audio routing setting to "BLUETOOTH HEADSET"

Go to Settings - Accessibility - Touch - Call Audio Routing. Keep it at "Automatic"

1. IF the screen is black & not showing factory infotainment screen or the CarPlay/Android Auto Screen

2. Confirm secure connection of LVDS cables to the top monitor.

3. Confirm LVDS cables are not damaged, pinched, kinked or bent.

4. No trigger issue /No click heard when long hold applied on BACK button on steering wheel

5. Check and confirm proper connection of the Main Car Interface Harness,
   CAN bus board, and 30-pin Car Interface Harness.

6. Check and confirm no loose pins or damage to the harness. Green/RED LED Light should be visible from the Metal Box

7. When long hold is applied on BACK button on steering wheel, black screen appears

8. Confirm proper secure connection of the HDMI Cable.

9. Confirm power wire is connected on the CarPlay Box. Red LED light should be visible from the CarPlay Box.

10. Screen image glitching or distorted

- Confirm correct dip switch setting.

1. Hands free call quality noise and echo

2. For iPhone, confirm the phone is connected to your vehicle via Bluetooth and
   "Call Audio Routing setting" Keep it at "Automatic"

3. For Android, confirm Bluetooth is being used for calls by observing phone's call audio output.

4. No sound

5. Confirm AUX cable connection, which is on the HDMI side of the CarPlay Box.

6. Confirm Car Media Source is in AUX mode. Confirm sound output from the phone to CarPlay module.

7. Siri does not recognize my voice

8. Confirm Microphone jack connection (3.5mm), which is on the USB side of the CarPlay Box.

9. Confirm that there are no wire damage.

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