{"product_id":"aerpro-swmc7c-swc-interface-mercedes-various-most-25-amplified","title":"Aerpro SWMC7C SWC Interface Mercedes Various MOST 25 Amplified","description":"\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.375rem] font-bold\"\u003e\u003cstrong\u003eAerpro SWMC7C Steering Wheel Control Interface Mercedes Various Models MOST 25 Amplified\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA CANBUS and fibre optic steering wheel control interface engineered for various Mercedes models with MOST 25 amplified systems, the SWMC7C retains factory steering wheel controls and the MOST 25 OEM amplified system, and provides reverse trigger, park brake, speed pulse, and illumination outputs with no wire cutting required.\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Aerpro SWMC7C is a CANBUS and fibre optic steering wheel control interface designed for various Mercedes models fitted with MOST 25 amplified systems. It includes a harness fitted with a vehicle-specific plug that connects directly into the existing factory wiring in the vehicle without cutting or modifying the factory harness. No additional modules are required for CANBUS or fibre optic vehicles.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe SWMC7C is compatible with SW-type patch leads (sold separately), supports the OEM phone button when enabled from factory and connected to a compatible aftermarket Bluetooth head unit, and retains the MOST 25 OEM amplified system. To maintain the MOST 25 OEM amplified system, the aftermarket head unit must have RCA pre-outs. The SWMC7C is not compatible with Harman Kardon amplified systems and does not allow the OEM clock to be adjusted.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eOutputs include reverse trigger (purple\/white), park brake (green), speed pulse (pink), and illumination (orange). Voice Assistant support is available; if the steering wheel controls do not include a dedicated Voice Assistant button, the answer button functions as voice support instead, provided the aftermarket head unit and paired phone also support the Voice Assistant feature.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFor SLK vehicles: CANBUS is also found in the quadlock to amp. The amp is located at the front passenger floor. CAN High (blue wire) connects to brown\/red; CAN Low (white wire) connects to brown. The antenna is also located near the quadlock. Custom button remapping is available and requires a USB-C cable (sold separately). Installation is simplified when the SWMC7C is paired with the optional Aerpro APP8 Headunit Secondary ISO Harness (sold separately). The aftermarket head unit must be SWC compatible and steering wheel control functions may vary from OEM functions. Use the Aerpro Vehicle Selector to confirm the correct part for your specific vehicle before purchase.\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eRetains Factory Steering Wheel Controls with Aftermarket Head Unit:\u003c\/strong\u003e The SWMC7C allows the factory steering wheel audio controls to operate with a compatible aftermarket head unit, maintaining hands-on-the-wheel control without requiring the driver to reach for the head unit directly.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCANBUS and Fibre Optic Integration - No Additional Modules Required:\u003c\/strong\u003e The SWMC7C uses CANBUS and fibre optic integration for direct communication with the vehicle's CANBUS network and MOST 25 fibre optic audio bus, eliminating the need for additional interface modules in compatible Mercedes vehicles.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eMOST 25 OEM Amplified System Retention:\u003c\/strong\u003e The SWMC7C retains the MOST 25 OEM amplified system in the vehicle. The aftermarket head unit must have RCA pre-outs for MOST 25 amplified system retention to function. The SWMC7C is not compatible with Harman Kardon amplified systems.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle-Specific Plug - No Wire Cutting Required:\u003c\/strong\u003e The SWMC7C harness is fitted with a vehicle-specific plug engineered to connect directly into the existing factory wiring in the vehicle. No cutting or modification of the factory wiring harness is required, simplifying installation and preserving the factory wiring integrity.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eOEM Phone Button Support (When Enabled from Factory):\u003c\/strong\u003e The SWMC7C supports the OEM phone button on the steering wheel when the phone button feature is enabled from factory and connected to a compatible aftermarket Bluetooth head unit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVoice Assistant Support:\u003c\/strong\u003e Voice Assistant support is available through the SWMC7C. If the steering wheel does not include a dedicated Voice Assistant button, the answer button functions as voice support instead. The aftermarket head unit and paired phone must also support the Voice Assistant feature for this to operate.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eReverse Trigger Output (Purple\/White):\u003c\/strong\u003e A reverse trigger output via a purple\/white wire enables automatic switching to the reverse camera input on the aftermarket head unit when reverse gear is selected.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePark Brake Output (Green):\u003c\/strong\u003e A park brake output is provided via a green wire, supplying the park brake signal required by compatible aftermarket head units for safety feature operation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSpeed Pulse Output (Pink):\u003c\/strong\u003e A speed pulse output is provided via a pink wire for aftermarket head units that require a vehicle speed signal for navigation or speed-dependent volume functions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eIllumination Output (Orange):\u003c\/strong\u003e An illumination output is provided via an orange wire, allowing the aftermarket head unit to automatically adjust its display brightness in response to the vehicle's instrument illumination signal.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSLK-Specific Installation Notes:\u003c\/strong\u003e For SLK vehicles, the CANBUS is also found in the quadlock to amp connection. The amp is located at the front passenger floor. CAN High (blue wire) connects to brown\/red and CAN Low (white wire) connects to brown. The antenna is also located near the quadlock.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCustom Button Remapping Available:\u003c\/strong\u003e The SWMC7C supports optional custom button remapping to customise the steering wheel control button configuration. Remapping requires a USB-C cable (sold separately).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCompatible with Aerpro APP8 Secondary ISO Harness:\u003c\/strong\u003e The SWMC7C is recommended to be installed with the Aerpro APP8 Headunit Secondary ISO Harness (sold separately), which connects between the aftermarket head unit and the SWMC7C interface for a simplified and complete installation.\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cstrong\u003eTechnical Specs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSKU\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSWMC7C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBrand\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAerpro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eCompatible Vehicles\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eMercedes Various Models with MOST 25 Amplified Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eInterface Type\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eCANBUS and Fibre Optic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003ePatch Lead Type\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003ePhone Button Compatibility\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes (when enabled from factory)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eVoice Assistant Support\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eReverse Trigger Output\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes (Purple\/White)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003ePark Brake Output\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes (Green)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSpeed Pulse Output\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes (Pink)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eIllumination Output\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes (Orange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAmp Remote Output\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eTelephone Mute Output\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eOEM Amplified System Retention\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes - MOST 25 (aftermarket head unit requires RCA pre-outs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eHarman Kardon Compatibility\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNot compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eOEM Clock Adjustment\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eCustom Button Remapping\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes (USB-C cable required, sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRecommended Accessory\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eAerpro APP8 Headunit Secondary ISO Harness (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSWC Patch Lead\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRequired (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe SWMC7C is engineered for various Mercedes models fitted with MOST 25 amplified systems. It is not compatible with Mercedes vehicles fitted with Harman Kardon amplified systems. To retain the MOST 25 OEM amplified system, the aftermarket head unit must have RCA pre-outs. The OEM clock cannot be adjusted after installation. For SLK vehicles, refer to the SLK-specific CANBUS and antenna wiring notes in the product overview. Use the Aerpro Vehicle Selector to confirm the correct part for your specific vehicle before purchase. The aftermarket head unit must be SWC compatible and steering wheel control functions may vary from OEM functions.\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDoes the SWMC7C require cutting of the factory wiring harness?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNo. The SWMC7C harness is fitted with a vehicle-specific plug that connects directly into the existing factory wiring in the vehicle without cutting or modifying the factory harness.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDoes the SWMC7C retain the MOST 25 OEM amplified system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eYes. The SWMC7C retains the MOST 25 OEM amplified system. The aftermarket head unit must have RCA pre-outs for the amplified system retention to function. The SWMC7C is not compatible with Harman Kardon amplified systems.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eIs the SWMC7C compatible with Harman Kardon amplified Mercedes systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNo. The SWMC7C is not compatible with Harman Kardon amplified systems. Use the Aerpro Vehicle Selector to confirm the amplifier type in your specific Mercedes before purchase.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eIs a SWC patch lead included with the SWMC7C?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNo. A steering wheel control patch lead is required to use the SWMC7C and must be purchased separately. Use the Aerpro Vehicle Selector to confirm the correct patch lead for your vehicle.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eAre there any special installation considerations for Mercedes SLK vehicles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eYes. For SLK vehicles, the CANBUS connection is also found in the quadlock to amp wiring. The amp is located at the front passenger floor. CAN High (blue wire) connects to brown\/red and CAN Low (white wire) connects to brown. The antenna is also located near the quadlock. Confirm these wiring connections during installation on SLK models.\u003c\/p\u003e","brand":"Aerpro","offers":[{"title":"Default Title","offer_id":44475759460445,"sku":"SWMC7C","price":424.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/9528\/9437\/files\/SWMC7C.jpg?v=1779753716","url":"https:\/\/frankiesautoelectrics.com.au\/products\/aerpro-swmc7c-swc-interface-mercedes-various-most-25-amplified","provider":"Frankies Auto Electrics","version":"1.0","type":"link"}