Genuine OEM Volkswagen Door Wiring Harness, part number 3CN971120BE. This harness is responsible for transmitting electrical signals and power to various components located within the vehicle's door. It ensures the proper functioning of features like power windows, locks, and speakers. The harness is designed to fit precisely within the door cavity. Genuine OEM wiring harnesses are manufactured to exact specifications to ensure reliable electrical connections and long-term durability, preventing intermittent faults or premature failure.