Audi A4 B9 Aerial Roof Radio Antenna Shark Fin 4M0035503N Terra Grey - X7H

Visual condition of the part

The product shows signs of use visible in the photos. Audi A4 B9 Aerial Roof Radio Antenna Shark Fin Terra Grey - X7H is an original roof-mounted "shark fin" radio antenna designed for vehicle roof installation. This item belongs to the Car Antennas category and ensures stable radio signal reception while maintaining the factory look of the vehicle body. The stylish Terra Grey Metallic - X7H finish allows for an aesthetic match with the Audi body paint.

Specifications and technical data

• SKU: 4M0035503N-TEG
• Mark: Audi
• Condition: Used
• OEM Part Number: 4M0035503N
• Substitutable numbers: 4M0035503N, 4M0 035 503 N
• Color: Terra Grey Metallic - X7H
• Category: Antennas

Application and function of the roof antenna

The presented shark fin roof antenna is a component of the radio system mounted on the roof of the Audi A4 B9 generation. Its task is to ensure efficient radio signal reception and maintain the correct operating parameters of the factory multimedia system. The OEM-based design guarantees proper fitment to the roof curvature and compatibility with the vehicle's wiring. The "shark fin" profile reduces air resistance and minimizes turbulence, which is particularly important at higher speeds. Thanks to its compact design, the antenna does not protrude excessively above the roofline, which reduces the risk of mechanical damage during daily use, e.g., in automatic car washes.

Design and Terra Grey Metallic - X7H color

The Terra Grey Metallic - X7H finish allows for stylistic consistency with the factory Audi paint palette. The metallic surface structure blends well with the body lines, ensuring the antenna does not look like a replacement part, but rather an integral part of the roof. This is especially important during post-accident repairs or when replacing a damaged antenna, where maintaining the original character of the car is a priority. The streamlined shape of the housing minimizes aerodynamic noise and fits into the modern lines of the Audi A4 B9. The antenna is a subtle yet visible detail that influences the perception of the entire car silhouette, especially when viewed from above or from the rear of the vehicle.

Technical parameters and mounting fitment

As an item from the Car Antennas category, the product has been designed to work with the factory Audi radio installation. This means a properly selected mounting base, cable gland, and connectors intended for this type of roof antenna. As a result, it is possible to maintain system functionality without the need for any installation modifications. The antenna has an assigned OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration. Before purchasing, it is worth comparing the markings with the car's documentation or using a VIN search to confirm full compatibility with the given equipment version.

Condition of the item and benefits of choosing a used part

The offered antenna is a used part, which allows for a significant reduction in repair costs compared to purchasing a new component while maintaining the manufacturer's original specifications. In practice, this means factory-grade fitment, correct base geometry, and compatibility with the vehicle's radio system. Choosing an original, used shark fin roof antenna is particularly beneficial when you want to maintain the factory look of the roof and avoid fitment issues that may occur with cheaper universal replacements. This solution is especially recommended for post-accident repairs, replacement after mechanical damage, or restoring the car to a condition close to factory standards.

How to correctly select an antenna by OEM number and VIN

To ensure that the roof antenna will be fully compatible with your Audi, it is worth verifying the OEM part number and any interchangeable numbers with the vehicle's documentation or equipment card. Searching by VIN is also helpful, as it allows you to match the item to the specific body version and multimedia system. Practical tips on selecting components by manufacturer numbers and identifying compatibility with the car can be found in the article: Guide: how to select the right car part by VIN and OEM number. This is a particularly useful source of knowledge when purchasing items such as roof antennas, where details of the equipment version are essential. If you are planning a comprehensive repair or upgrade of the roof area in your Audi and need other items from the same group, such as radio antennas, GPS antennas, or comfort system antennas, check the available parts in the Audi Car Antennas category.