Audi A6 C8 Door Treble Speaker Rear Left Right N/O/S 4K0035399

The Audi A6 C8 Tweeter Speaker Rear Left Right Back is an original component fitted in the rear door trim, responsible for precise reproduction of high frequencies in the audio system. Thanks to its factory fit to the door structure, it ensures consistent sound and aesthetic integration with the interior. This is a practical solution for replacing a damaged speaker or restoring full audio functionality.

Specifications and technical data

• SKU: 4K0035399
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0035399
• Substitutable numbers: 4K0035399, 4K0 035 399
• Location on the vehicle: Rear, Right, Left
• Category: Door Panels

Vehicle Application and Placement

This tweeter speaker is designed for installation in the rear doors of the vehicle, with the possibility of fitting on either the left or right side. Its placement in the upper part of the door trim allows for proper dispersion of high frequencies towards the rear seat passengers, improving sound clarity and the uniformity of the acoustic stage.

This component belongs to the Door Trim group, meaning it is structurally adapted for integration with factory mountings and grilles in the doors, without the need for modifications or additional adapters.

Technical and Functional Characteristics

The tweeter speaker is responsible for reproducing details such as vocals, high-frequency components of instruments, and onboard system signals, which directly impacts acoustic comfort within the cabin. The dome design (typical for this type of transducer in Audi) ensures:

• precise reproduction of high frequencies,
• stable sound dispersion in the rear part of the cabin,
• sonic consistency with other speakers in the audio system.

As a genuine Audi part, the speaker is optimized to work with the standard amplifiers and multimedia units used in the C8 generation A6 model, minimizing the risk of distortion and unwanted resonances.

Condition, Origin, and Benefits of Using a Used Part

The offered speaker is a used part, allowing for an economical repair of the audio system while maintaining the original manufacturer's specifications. Unlike universal replacements, a factory transducer retains compatibility with the electrical system and door trim geometry, facilitating installation and minimizing replacement time.

Choosing an original, used component is also a beneficial solution from the perspective of automotive recycling and waste reduction. If you wish to learn more about the advantages of this approach, we recommend reading the article Eco-Friendly Driving: Discover the Benefits of Used Car Parts, which describes the practical aspects of reusing OEM components.

Why Choose an Original Audi A6 C8 Tweeter Speaker

Using a factory tweeter speaker in the rear doors helps maintain the acoustic consistency of the entire sound system, which is particularly important in modern premium vehicles. Key benefits include:

• Full integration with door trim – matched mountings and housing shape.
• Electrical system compatibility – correct connectors and operating parameters.
• Stable sound – maintaining the sound characteristics intended by the manufacturer.
• Can be installed on either the left or right rear door, as needed for repair.

If you are planning a comprehensive repair or upgrade of the door area in your Audi and require other parts from the same group, such as door panels, decorative inserts, or additional trim pieces, check the available parts in the Audi Door Trim category.