Genuine OEM Audi Antenna Base Grommet, part number 8J7035539A. This component is designed to create a watertight seal around the antenna base opening, protecting the interior from water and debris. It is typically installed on the vehicle's roof or fender where the antenna mounts. Weighing 0.013 kg and made from durable rubber, this grommet ensures a snug fit. Choosing genuine OEM grommets guarantees the correct material flexibility and precise dimensions for effective sealing and long-term weather resistance.