Genuine OEM Volkswagen Trailer Hitch Electrical Bridge Harness, part number 000055712A. This electrical harness acts as a bridge, connecting the vehicle's electrical system to the trailer hitch wiring, enabling proper signal and power transmission to a connected trailer. It is typically installed near the rear of the vehicle, integrating with the trailer hitch assembly. The harness weighs 0.18 kg and measures 0.15m in length. Opting for a genuine OEM electrical harness ensures correct pinouts, wire gauge, and insulation, which are crucial for reliable electrical connections and preventing issues with trailer lighting or braking systems.