The Genuine BMW Door Wiring Harness Rear - 61129243553 is a high-quality wiring harness designed specifically for the rear door of BMW vehicles. It is made from durable materials and is an exact replacement for the original part. This wiring harness is responsible for connecting various electrical components in the rear door, such as the power window motor, door lock mechanism, and speakers. It ensures proper functioning of these components and allows for smooth operation of the rear door. This product is an authentic BMW part and is compatible with a wide range of BMW models.