Description: The Aerpro CHMC00C 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 vehicles, the steering wheel control interface includes two harnesses that are fitted with vehicle specific plugs (one ISO and one Quadlock), 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 compatible and provides various outputs including Reverse Trigger, Park Brake, Speed Pulse, Illumination and Telephone Mute. 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. Not suitable for OEM amplified vehicles. This interface includes 2 vehicle harnesses, one with an ISO connector and one with a Quadlock Connector. It can be used in applications where CHMC1C or CHMC2C are listed. Features: 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 Voice Assistant Button support available with software update (please contact your Authorised Aerpro Dealer for update) CAN-BUS integration compatible, no additional modules required for CAN-BUS vehicles Provides output feeds for reverse trigger, park brake, speed pulse, illuminations and telephone mute Includes ISO and Quadlock connectors, no cutting of wires required Suitable alternative where CHMC1C or CHMC2C applications are listed 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) Specs: INTERFACE TYPE: CANBUS PATCH LEAD TYPE: C PHONE BUTTON COMPATIBILITY: YES VOICE ASSISTANT BUTTON SUPPORT: 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 must also support Voice Assistant feature for this feature to work OUTPUTS: REVERSE TRIGGER: YES (PURPLE) PARK BRAKE: YES (GREEN) SPEED PULSE: YES (PINK) ILLUMINATION: YES (ORANGE) AMP REMOTE: NO TELEPHONE MUTE: YES (YELLOW/BLACK) OTHER RETENTION: OEM AMPLIFIED SYSTEM: NO NOTES: Aftermarket headunit must be SWC compatible. SWC patch lead is also required to enable SWC (sold separately). Not suitable for OEM amplified vehicles. This interface includes 2 vehicle harnesses, one with an ISO connector and one with a Quadlock Connector. It can be used in applications where CHMC1C or CHMC2C are listed.