The Genuine BMW Door Wiring Harness Rear - 61129219986 is a high-quality replacement part for the wiring harness in the rear door of a BMW vehicle. It is designed to connect all the electrical components in the door, such as the power window, door lock, and speaker systems. This wiring harness is an authentic BMW product, ensuring a perfect fit and reliable performance. It is made from durable materials and meets strict quality standards, making it a dependable choice for maintaining the electrical system of a BMW.