Genuine OEM Audi Antenna Amplifier, part number 83A035225A. This electronic module is designed to amplify radio or GPS signals received by the vehicle's antenna, improving reception quality. It is typically located on the left rear side of the vehicle. Weighing 0.056 kg, its precise electronic calibration is crucial for optimal performance. Genuine OEM antenna amplifiers ensure correct signal processing, compatibility with the vehicle's infotainment system, and reliable reception across all frequencies.