Genuine OEM Audi Antenna Amplifier, part number 4M8035225J. This electronic module is designed to boost the signal strength received by the vehicle's antenna, improving reception for various audio and communication systems. It is typically mounted on the left side of the roof structure. Weighing 0.059 kg, it measures 0.115 m in length, 0.02 m in width, and 0.03 m in height. Choosing a genuine OEM amplifier ensures precise signal processing and seamless integration with the vehicle's electrical architecture.