Genuine OEM Volkswagen Door Wiring Harness, part number 3CN971120AG. This harness is responsible for routing electrical signals and power to various components located within the vehicle's door. It ensures all electrical functions within the door operate correctly. This part is specifically designed for the door assembly. Genuine OEM wiring harnesses are manufactured to exact specifications, ensuring proper insulation, conductor integrity, and connector fitment for reliable and safe electrical operation.