ACV 42XPO004-0 Steering Wheel Control Interface for Porsche Vehicles
Model: 42XPO004-0
Retains the Fibre-Optic Amplified System
Product Overview
The ACV 42XPO004-0 is an interface designed to retain your vehicle's original steering wheel controls and the MOST Fibre-Optic amplified system when installing an aftermarket head unit. It features selectable dipswitches for specific vehicle applications, ensuring seamless integration.
Vehicle Application
Vehicle: PORSCHE Cayenne (9PA)
Years: 2007-2010
Compatibility Notes: For vehicles equipped with PCM3.0 touch screen navigation and the MOST OEM amplified system. Requires a Quadlock (Fakra) vehicle connector. The aftermarket radio must have RCA audio out connectors.
Key Features
- ✅ Retain Steering Wheel Control Functionality
- ? Replace Factory Radio
- ✅ Retains the MOST Fibre-Optic Amplified System
- ➡️ Outputs for Park Brake, Reverse, Speed Pulse
- ? Software Updateable
Prior to Installation
Installation requires technical knowledge. Read this manual thoroughly before proceeding. Select an installation location that is dry and free from heat sources. Use the correct tools to prevent damage to the vehicle or product. ACV is not liable for issues arising from improper installation.
Important: Before installation, disconnect the negative battery terminal and remove the key from the ignition.
Wiring Key
ISO Connector Wiring Key
- Purple: Right Rear Speaker +
- Purple/Black: Right Rear Speaker -
- Green: Left Rear Speaker +
- Green/Black: Left Rear Speaker -
- Grey: Right Front Speaker +
- Grey/Black: Right Front Speaker -
- White: Left Front Speaker +
- White/Black: Left Front Speaker -
- Yellow: Permanent 12V
- Black: Ground
- Red: Ignition 12V
- Orange: Illumination
Flying Wire Wiring Key
- Pink: Speed Pulse - 0 to 12V Square Wave @ 1Hz/Kph
- Green: Park Brake
- Purple/White: Reverse Gear - 250mA
- Orange: Illumination - 250mA
- Red/White Yellow RCA: Acc 12V - 250mA Camera
Outputs & Ratings
- Standby Current: <3mA
- Operating Voltage: 6V to 16V
- Operating Temperature: -20°C to 85°C (rated at 25°C)
Dipswitch Configuration
This interface includes a set of dipswitches. Consult the table below to select the appropriate configuration. To activate a dipswitch, press it downward into the 'ON' position.
| Manufacturer | System | DIP Switch Settings | Connection |
|---|---|---|---|
| RESERVED | NA | 1: OFF, 2: OFF, 3: OFF, 4: OFF, 5: OFF | SW UPDATE BOOT MODE |
| ALPINE | IR DATA | 1: OFF, 2: ON, 3: OFF, 4: OFF, 5: OFF | MALE 3.5MM JACK |
| CLARION | IR DATA | 1: ON, 2: OFF, 3: OFF, 4: ON, 5: OFF | MALE 3.5MM JACK |
| GRUNDIG | IR DATA | 1: OFF, 2: ON, 3: OFF, 4: ON, 5: OFF | BROWN SWC IR |
| JVC | IR DATA | 1: OFF, 2: OFF, 3: ON, 4: OFF, 5: OFF | BROWN SWC IR |
| KENWOOD 1 | IR DATA | 1: ON, 2: OFF, 3: OFF, 4: OFF, 5: OFF | BROWN SWC IR |
| KENWOOD 2 | IR DATA | 1: ON, 2: ON, 3: OFF, 4: OFF, 5: OFF | BROWN SWC IR |
| LG | Analog | 1: OFF, 2: OFF, 3: ON, 4: ON, 5: OFF | MALE 3.5MM JACK |
| PHILIPS | IR DATA | 1: OFF, 2: ON, 3: OFF, 4: ON, 5: OFF | BROWN SWC IR |
| PIONEER 1 | Analog | 1: OFF, 2: OFF, 3: OFF, 4: ON, 5: ON | MALE 3.5MM JACK |
| PIONEER 2 | Analog | 1: OFF, 2: OFF, 3: OFF, 4: ON, 5: OFF | MALE 3.5MM JACK |
| SONY | Analog | 1: OFF, 2: OFF, 3: ON, 4: ON, 5: OFF | MALE 3.5MM JACK |
| ZENEC | IR DATA | 1: ON, 2: ON, 3: OFF, 4: ON, 5: OFF | BROWN SWC IR |
| KEY1 / KEY2 | Analog | 1: OFF, 2: OFF, 3: OFF, 4: ON, 5: ON | KEY1 / KEY2 WIRES |
NOTE: The dipswitch settings for the MOST SWC interfaces differ from those for the SWC interface range. Please refer to the appropriate dipswitch table in the instruction guides for accurate configuration.
SWC MOST Interface Ports
The interface features the following ports:
- FIBRE-OPTIC CONNECTOR PORT: For connecting the vehicle's fibre-optic system.
- HARNESS CONNECTOR PORT: Connects to the main vehicle harness.
- HEAD UNIT CONNECTION LEAD PORT: Connects to the aftermarket stereo.
- CAN USB UPDATE: For updating CAN Bus software.
- DIPSWITCHES: For configuring the interface.
- MOST USB UPDATE: For updating MOST software.
Software Update
The interface software can be updated using the two micro USB ports. One port is dedicated to updating the MOST software, and the other is for updating the CAN Bus software. Connecting to these ports ensures the interface remains up-to-date for optimal performance and compatibility.
Software update instructions can be found in a separate guide on the ACV website.
Connection Guide
Before Installation
Prior to installing the interface, remove and disconnect the factory stereo. Refer to the vehicle owner's manual or seek professional assistance for this process.
Setting the Dipswitches
Use the dipswitch selection guide above to select the appropriate configuration. Press a dipswitch downward into the 'ON' position to activate it.
Installation Steps
- Connect the head unit connection lead and the steering wheel harness connectors to their respective ports on the interface.
- Connect the head unit connection lead to the steering wheel remote input on the rear of the aftermarket stereo. Connection methods vary (3.5mm jack connector SWC IR wire or wired inputs KEY1 and KEY2). Refer to your aftermarket stereo's manual for specific guidance.
- Connect the power/speaker ISO connector from the interface to the corresponding ISO connection on the aftermarket stereo. If the stereo lacks an ISO connector, refer to the "Wiring Key" on Page 2 for wire connections. Some interfaces include extra "flying" wires for parking brake, reverse gear, and speed pulse.
- Connect the vehicle-specific connectors from the interface harness to the corresponding connectors on the vehicle harness.
- Connect the flying wires on the harness to the rear of the stereo, if applicable.
- Connect the antenna adapter to the vehicle's existing antenna connection at the rear of the aftermarket stereo.
- If installing an aftermarket reverse camera, connect the yellow RCA from the harness to the camera's yellow RCA (if supported).
- If installing a DAB antenna, connect the DAB aerial connector to the rear of the new stereo.
- After connecting all wires and accessories, thoroughly test the stereo and steering wheel controls before reassembling the dashboard. If controls are unresponsive, inspect connections and check dipswitch settings. Repeat the connection process if necessary.
Installing the Fibre-Optic Cable
To adapt to the MOST interface, the original fibre-optic connection must be removed and replaced.
- Place the amplifier interface into the black connector housing provided with the kit and snap it into place. (Refer to Image A in original document)
- From the original fibre-optic connector: Using a pick tool, carefully pull the tab toward the outer edge of the connector housing. Gently remove the grey fibre-optic insert from the connector. (Refer to Image B in original document)
- From the MOST interface: Push the tab toward the grey dust cover. Using needle-nose pliers, remove the grey dust cover. Insert the factory fibre-optic cables into the MOST interface's black connector housing in place of the grey connector. (Refer to Image C in original document)
Steering Wheel Control Configuration
The following diagram illustrates common steering wheel controls. Actual configurations may vary depending on the vehicle.
Control Mapping:
- A: Volume Up
- B: Volume Down
- C: Mute
- D: Track Up
- E: Track Down
- F: Phone Pick Up
- G: Phone Hang Up
(Diagram of steering wheel buttons F, A, B, C, G, D, E with labels is described here.)
Connection Diagram Description
The connection diagram illustrates the various components and their interconnections:
- Head Unit Connection Lead: Features wires for SWC IR/KEY1, KEY2, Ground, and a 3.5mm Jack Plug to connect to the aftermarket stereo.
- MOST SWC Interface: Shows the unit with dipswitches (labeled N, 1-5, K, E) and connection ports.
- SWC Vehicle Harness: Includes an ISO Connector for the radio harness, RCA connectors for Park Brake, Speed Pulse, and Reverse, and Vehicle Connectors to connect to the vehicle harness.
NOTE: Harness wire colours are for illustration purposes only and may differ from the actual harness.
