Genuine OEM Volkswagen Left Front Door Wiring Harness, part number 5C0971120M. This wiring harness is responsible for delivering electrical power and signals to all the components located within the left front door, including power windows, door locks, mirrors, and speakers. It routes through the door jamb and connects to the vehicle's main electrical system. Manufactured with high-quality wires, connectors, and protective sheathing to ensure durability and prevent electrical interference. Genuine OEM wiring harnesses are critical for door modules to ensure all electrical functions operate correctly and reliably, maintaining factory specifications for safety and convenience.