Audi A4 B8 Antenna Amplifier Aerial Module Booster Control Unit 8K5035225

The Audi A4 B8 Antenna Amplifier Module is an original component from the car antennas category, designed for the radio signal reception system in Audi vehicles. This module ensures stable amplification of the signal from the roof or body antenna, leading to a more comfortable experience with the audio and navigation systems in daily use.

Specifications and technical data

• SKU: 8K5035225
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K5035225
• Substitutable numbers: 8K5035225, 8K5 035 225
• Category: Antennas

Purpose and Function of the Antenna Amplifier

The Audi A4 B8 antenna amplifier acts as an intermediate module between the antenna and the vehicle's multimedia system. Its task is to boost the radio signal level and reduce interference that may occur during driving in varied terrain conditions.

A properly selected antenna amplifier module allows for:

• increased sensitivity of radio reception for FM/AM stations,
• more stable operation of the factory radio and onboard systems that use the antenna signal,
• reduction of noise and signal interruptions in typical road conditions.

Original Origin and Fitment for Audi

This module comes from the Audi OE line, meaning it adheres to factory quality standards, electrical compatibility, and mechanical mounting. This ensures a predictable installation process, without the need for wiring modifications or bodywork interference.

Key advantages of an original antenna amplifier include:

• precise fit for Audi A4 B8 installations – connectors and mounting points are consistent with the factory design,
• compatibility with the vehicle's diagnostic system – the module works with the electrical architecture designed by the manufacturer,
• maintenance of original reception characteristics without the risk of unexpected interference typical of universal aftermarket parts.

Performance and Installation Characteristics

As a component within the car antennas category, this module is designed to operate in variable environmental conditions typical of the trunk compartment or body space where antenna amplifiers are usually mounted in Audi vehicles. Its construction is resistant to vibrations and typical temperature ranges found within the vehicle.

In practice, this means:

• stable performance during long-term use with daily driving,
• possibility of installation in place of the original module without installation modifications,
• preservation of original antenna cable routing and electrical harnesses.

Product Condition and Service Application

The offered antenna amplifier is a used part, sourced from disassembly, allowing for economical repair of the antenna system while maintaining the original Audi specifications. This type of module is particularly useful in situations where the vehicle experiences radio reception problems, signal loss, or interference after the factory amplifier has been damaged.

Choosing an original, used module allows for:

• reduced repair costs compared to a new part from an authorized dealer,
• maintaining full compatibility with the factory installation,
• minimizing the risk of electrical incompatibility, typical of universal parts.

Selection by OEM Number and Purchase Support

When selecting an antenna amplifier for an Audi, it is crucial to compare the OEM number and interchangeable numbers with the vehicle's data and manufacturer documentation. Proper identification of the module helps avoid compatibility issues and ensures correct operation of the antenna system.

If you want to check step-by-step how to correctly verify the module's compatibility with your car, refer to the advice in the article Guide: How to Choose the Right Car Part by VIN and OEM Number. There you will find a practical action plan, examples, and a list of questions to ask before purchasing a used part.

If you are also looking for other Audi car antennas compatible with your model, check out our dedicated offer: Audi car antennas. This will allow you to easily compare available modules and choose the solution that best suits your car's configuration.