Can Bus Kit Mercedes / VW Quadlock-/Power + Loud speaker (ISO) + DIN Antenna connection If the OEM radio installed ex-factory is to be replaced in a vehicle controlled by CAN Bus with an retrofit radio, a specific CAN Bus adapter is required. Specific and universal CAN bus adapters convert relevant digital data of the respective vehicle-specific data bus into analogue signals. Depending on the adapter, different signals or comfort functions such as ignition plus, lighting, reverse gear signal or also a speed signal are read out and provided analogueously for different retrofit solutions. Our support team will be happy to help you with your selection.  02431-9645-96 support@acvgmbh.de Note: Can-Bus connection: Quadlock outputs can be loaded up to 1AAntennenadapter Fakra / DIN vehicles with Harman Kardon interface 13-1190-52 or 13-1190-53Suitable for the following vehicles: Mercedes A-Class (W169) 2004 - 2012Mercedes B-Class (T245) 2004 - 2011Mercedes C-Class (W203) from 04/2004 - 2007Me