Genuine OEM Audi Rear Door Window Guide Strip Trim, part number 4N4839644BT94. This trim strip is designed to both guide the window smoothly within its channel and provide a clean, finished aesthetic edge for the door. It is installed on the right rear door. Measuring approximately 0.7 meters in length, this trim piece features a chrome (T94) finish. Choosing a genuine OEM guide trim strip ensures precise dimensional accuracy for proper window operation and a durable, factory-matched finish that maintains the vehicle's premium look and functionality.