InCarTec 29-UC-050-CHR1 Chrysler Steering Wheel Control Interface

For Chrysler 300C (05-10), Jeep Grand Cherokee (05-08), Jeep Compass (06-11)

Interface Pinout

Pin	Color	Function
1	N/A	N/A
2	Green	CAN HIGH
3	Orange	Illumination Output
4	Brown	SWC Data Output
5	Red	12V Ignition Output
6	N/A	N/A
7	Yellow	12v Permanent Input
8	Black	SWC Ground Output
9	White	CAN LOW
10	Blue	Reverse 12v Output
11	Grey	Speed Pulse Output
12	Purple	SWC RES Output
13	N/A	N/A
14	Black	Ground Input

Installation and Vehicle Recognition

Step 1: Connect Cables

Connect the interface box cables to the vehicle's wiring harness. Connect the patch lead to the 4-pole black connector (attached to pins 4, 8, and 12 of the control box). Connect the two 8-pin ISO connectors and the patch lead to the aftermarket head unit.

Upon connection to the vehicle, the interface will automatically recognize the vehicle. A green LED on the interface will flash repeatedly once, followed by a pause. If the LED flashes red, it may indicate that the CAN wires are reversed in the vehicle. Bullet connectors are provided inline on the green (Pin 2) and white (Pin 9) CAN wires for swapping purposes.

Setting the Head Unit Brand

Step 2: Select Head Unit Type

The number of LED flashes between pauses corresponds to the make of the head unit. Use the vehicle's steering wheel VOL+ and VOL- buttons to increase or decrease the flash count. Press SEEK+ to confirm the selection, and the LED will turn solid green.

Head Unit Programming Table:

Number of Flashes	Make of Head Unit
1	Clarion 3.5mm jack
2	Kenwood 1 wire
3	JVC 1 wire
4	Alpine 3.5mm
6	Pioneer 3.5mm jack
	Resistive 2 wire
	Resistive 3.5mm jack
7	Sony 3.5mm jack

For Chinese and Resistive Programming Head Units:

Set the number of flashes to 6. Confirm by pressing SEEK+. Then, press the reset button 5 times. The interface will start flashing yellow, indicating it's ready for resistive learning. Use the head unit's resistive learning menu to program buttons. Wait at least 5 seconds between each button press. After programming, turn the ignition off and on; the LED should return to solid green.

Reprogramming the Interface:

If you need to set the interface for a different head unit brand, or if the LED is solid green before you have programmed it, push and hold the reset button for 10 seconds, then release. The LED should begin flashing green.

Note: If fitting an Alpine unit, please set jumper J1. Refer to the next section.

Setting the Jumpers

The jumpers are located on the PCB inside the interface box. By default, they are set to suit most vehicles. They typically only need adjustment when fitting an Alpine head unit. Jumpers are set by moving them between position 1-2 or 2-3.

Jumper	Position 1-2	Position 2-3
J1	Alpine	All other Radio Manufacturers
J2	Negative Handbrake (not all vehicles)
J3		Positive Reverse Output
J4		CANbus Handling
J5		CANbus Handling

Reverse and Speed Pulse Cables

Step 4: Reverse and Speed Pulse

The reverse output (blue wire) is required when fitting a reverse camera to the new head unit. The grey speed pulse wire is necessary for head units with built-in satellite navigation and some Kenwood units. If these functions are not needed, insulate and ignore these wires.

Speaker Adapter

Step 5: Speaker Adapter

If phone or navigation audio is not being output through the front speakers, connect the brown ISO speaker adapter cable. This swaps the audio output from the rear to the front speakers and is often required for vehicles with the original Boston Audio system.

Patch Lead Wiring Information

Ensure the patch lead is connected to the 4-pin plug on the interface and the corresponding input on the new head unit.

Wiring information is shown from the wire entry side of the connector: