Audi A6 C8 Rear Door Speaker Left Right N/O/S 4K0035399A

Audi A6 C8 Rear Door Speaker Left Right is an original audio component designed for installation in the vehicle's rear doors. It ensures consistent sound quality with the factory audio system, maintaining proper fitment with the electrical installation and door structure. As a result, it provides a safe and technically correct solution when replacing a damaged speaker in your Audi.

Specifications and technical data

• SKU: 4K0035399A
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0035399A
• Substitutable numbers: 4K0035399A, 4K0 035 399 A
• Location on the vehicle: Rear, Right, Left
• Part type: Door Panel
• Category: Door Panels

Purpose and vehicle placement

The presented speaker is dedicated for installation in the rear doors of the Audi A6 C8 generation. The design is intended for operation on both the left and right sides, which facilitates the selection of the component during audio system service. Its placement in the door allows for maintaining the factory soundstage and even distribution of the audio spectrum within the cabin.

Technical characteristics and integration with door trim

The speaker has been designed as an integral part of the door assembly, working in conjunction with the factory Door trim. The appropriately selected basket diameter, mounting depth, and placement of mounting points allow for stable seating in the door panel without the need for modifications to the trim structure.

The factory electrical connector ensures correct polarity and compatibility with the vehicle's wiring harness. Consequently, the speaker works seamlessly with the original amplifier and control unit, which minimizes the risk of interference, volume drops, or sound distortion.

Benefits of using an original Audi speaker

Using an original Audi component in the rear doors offers a number of practical benefits:

• maintaining a consistent sound character with the other speakers in the vehicle,
• secure fitment to the factory mounting points in the doors,
• proper operation with the stock audio installation without modifications,
• reduction of the risk of resonance and unwanted vibrations of the door trim.

Thanks to this, replacing a damaged component with an original door speaker allows you to restore acoustic comfort in the interior and maintain the factory equipment standard without quality compromises.

Component condition and service application

The speaker is intended for service applications as a replacement for the factory-installed component in the Audi A6 C8. It is suitable both for point replacement of a single speaker and for broader work related to interior restoration or door repair after a collision. Installation is recommended to be performed in accordance with service procedures, particularly regarding door trim removal and acoustic seal inspection.

Upgrade expansion – Audi door trims

If you are planning a comprehensive repair or upgrade of the door area in your Audi and need other elements from the same group, such as door panels, decorative inserts, or mounting elements, check out the available parts in the Audi door trims category.

Technical knowledge and parts selection

When selecting audio components and door equipment, it is worth following not only the manufacturer's markings but also compatibility with the specific body generation and equipment configuration. In the case of more advanced service work, also covering the powertrain or engine equipment in other models, specialized technical materials may be helpful – for example, the article Reliability under the star sign – how to take care of engine equipment in popular Mercedes-Benz C and E-Class models? shows how important proper component selection and regular service maintenance are in modern constructions.