Genuine OEM Audi Antenna Amplifier, part number 4KE035225. This electronic module boosts the signal received by the vehicle's antenna, ensuring clear reception for radio, navigation, and other communication systems. It is typically located at the rear of the vehicle, specifically on the right side. Measuring approximately 0.115m in length and weighing 0.056 kg, it is a compact component. Choosing a genuine OEM antenna amplifier ensures precise signal processing and compatibility with the vehicle's complex electrical architecture, preventing interference and maintaining optimal performance.