Genuine OEM Audi Rear Door Window Trim Strip, part number 4N0839643BT94. This trim strip is positioned on the left rear door, guiding the window glass and providing a clean, finished edge for the window frame. Made from durable materials and finished in T94, it is designed for precise fitment and long-lasting performance. Choosing genuine OEM trim ensures correct dimensions, proper sealing against elements, and a seamless aesthetic integration with the vehicle's exterior, preventing wind noise and water ingress.