Aerpro CHMC7C Steering Wheel Control Harness

Steering Wheel Control Harness

The Aerpro CHMC7C Steering Wheel Control Interface (SWC) allows you to upgrade to an aftermarket headunit whilst maintaining use of your factory steering wheel controls. Engineered to suit various Mercedes models with MOST 25 Amplified Systems, the steering wheel control interface includes a harness that is fitted with a vehicle specific plug designed to connect directly into the existing wiring in the vehicle with ease, no cutting of the factory wiring harness in the vehicle is required.

Installation of the aftermarket headunit is simplified even further when paired with the optional Aerpro APP9 Headunit Secondary ISO Harness & SWC Patch Lead, which connects between the aftermarket headunit and the Aerpro Steering Wheel Control Interface. This interface is CANBUS & Fibre Optic compatible and provides various outputs including Reverse Trigger, Park Brake, Speed Pulse and Illumination.

Please Note:

• Steering Wheel Control Interfaces vary between models, to find the correct part for your vehicle use the Aerpro Vehicle Selector.
• A Steering Wheel Control Patch Lead is required to be used in conjunction with this part to enable Steering Wheel Controls to function (sold separately).
• Aftermarket headunit must be SWC compatible and Steering Wheel Control Functions may vary from the OEM Functions.
• To maintain MOST 25 OEM Amplified System, the aftermarket headunit requires RCA pre-outs.
• Not compatible with Harmon Kardon amplified systems.
• Does not allow for OEM clock to be adjusted.
• For SLK Vehicles: CANBUS also found in quadlock to amp. Amp located front passenger floor. CAN High (Blue) to Brown/Red. CAN Low (White) to Brown. Antenna also located near quadlock.

Important Notes:

• Allows you to upgrade to an aftermarket headunit whilst maintaining use of your factory steering wheel controls
• Increases driver safety by allowing you to keep your hands on the steering wheel and eyes on the road
• Supports OEM Phone Button when connected to compatible aftermarket bluetooth headunits
• Retains the MOST 25 OEM Amplified System in the vehicle (the aftermarket headunit requires RCA pre-outs)
• Not compatible with Harmon Kardon OEM amplified vehicles
• CAN-BUS & Fibre Optic integration compatible, no additional modules required
• Provides output feeds for reverse trigger, park brake, speed pulse and illumination
• Fitted with a vehicle specific plug, no cutting of wires required
• Recommended to be installed with an Aerpro APP9 Headunit Secondary ISO Harness & SWC Patch Lead (sold separately)
• Requires SWC patch lead to provide compatibility with the aftermarket headunit (sold separately)

Inclusions & Notes:

• Interface Type: CANBUS
• Patch Lead Type: C
• Phone Button Compatibility: Yes (When Enabled From Factory)
• Voice Assistant Support Available: Yes
  • For Voice Assistant support the interface requires firmware version xx.3. To update the firmware please contact your Authorised Aerpro Dealer
  • If your steering wheel control does not have a Voice Assistant button, the answer button will function as voice support instead
  • Aftermarket headunit and phone must also support Voice Assistant feature for this feature to work
• Outputs:
  • Reverse Trigger: Yes (Purple/White)
  • Park b=Brake: Yes (Green)
  • Speed Pulse: Yes (Pink)
  • Illumination: Yes (Orange)
  • AMP Remote: No
  • Telephone Mute: No
• Other Retention:
  • OEM Amplified Syste,: Yes MOST 25

Suitable Vehicles:

• Mercedes CLK 2005-2008
• Mercedes CLS 2005-2011 W219
• Mercedes E-Class 2002-2009 W211
• Mercedes SLK R171 2004-2011