Genuine OEM Volkswagen Antenna Amplifier, part number 11E035577B. This electronic module is designed to boost the signal received by the vehicle's antenna, significantly improving radio, navigation, or other communication system reception quality. It is typically located on the left side of the vehicle. Weighing approximately 0.057 kg and measuring 0.115 m in length, this amplifier is a compact electronic component. Using a genuine OEM antenna amplifier ensures correct signal processing characteristics, compatibility with the vehicle's electrical system, and optimal reception performance for all integrated communication systems.