Genuine OEM Audi Mobile Phone Aerial Retainer, part number 4KE035525. This retainer is designed to securely mount the mobile phone aerial at the rear of the vehicle, ensuring stable positioning and optimal signal reception for communication and infotainment systems. Weighing 0.138 kg, it is constructed for durability and precise fitment. Using a genuine OEM retainer guarantees that the aerial is held firmly in place, preventing vibration-induced signal degradation and maintaining the intended performance of the vehicle's connectivity features.