Audi A4 S4 B6 B7 Rear Deck Center Subwoofer Speaker Bose System 8E5035412E

Audi A4 S4 B6 B7 Rear Deck Center Subwoofer Speaker Bose System is a factory audio component designed for installation in the rear of the vehicle, compatible with the Bose audio system in Audi A4 and S4 B6 and B7 generation models. Thanks to its design tailored to the specific platform, it ensures consistent sound quality with the other speakers and stable operation within the factory installation. This is the ideal solution for users who want to restore full functionality to their audio system without interfering with the original interior architecture.

Specifications and technical data

• SKU: 8E5035412E
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E5035412E
• Substitutable numbers: 8E5035412E, 8E5 035 412 E
• Location on the vehicle: Rear
• Category: Other Interior Parts & Accessories

Purpose and function in the Bose audio system

The presented subwoofer serves as the central low-frequency speaker in the rear of the cabin, responsible for reproducing low frequencies within the Bose system. Its task is to complement the frequency response of the other speakers, providing clearer bass, better dynamics, and more uniform sound distribution throughout the interior of the Audi A4 or S4 B6/B7.

The component is designed to work with the factory amplifier and wiring, allowing for the preservation of the vehicle's original acoustic characteristics. As a result, the user avoids issues with impedance matching, signal levels, or mechanical installation typical of universal aftermarket solutions.

Construction and fitment for the rear of the vehicle

The subwoofer has been engineered for dedicated placement in the rear of the vehicle, which translates into proper acoustic wave propagation within the cabin. The housing and speaker basket are adapted to the factory mounting points in the Audi A4/S4 B6/B7, facilitating installation and minimizing the risk of unwanted resonances.

The original design ensures:

• stable mounting in the rear of the body,
• proper integration with the upholstery and trunk or rear deck elements,
• preservation of the factory interior look without additional modifications.

Benefits of using the original Bose subwoofer

Using this component allows you to restore or maintain the cohesion of the Bose sound system in the Audi A4/S4 B6/B7. Compared to generic replacements, the original subwoofer offers:

• preservation of the factory sound characteristics,
• reliable electrical matching to the amplifier and installation,
• no need for wiring modifications or adapters.

This is particularly important in vehicles where maintaining the original equipment configuration is a priority – both from the perspective of user comfort and the potential resale value of the car.

Condition, origin, and practical application

The offered subwoofer speaker comes from disassembly and is a genuine Audi brand component, confirming its suitability for specific A4/S4 B6/B7 models equipped with the Bose system. As a used part, it is a great choice for users who want to reduce repair costs while maintaining the vehicle's original specifications.

It is suitable both for replacing a damaged factory speaker and for completing missing audio system components following previous modifications or unprofessional installation work.

Audio system expansion and related information

If you are planning a comprehensive repair or upgrade of the audio zone in your Audi and need other elements from the same group, such as additional speakers, an amplifier, or audio wiring, check out the available parts in the Other Audi category.

For users interested in a broader look at the differences in construction and equipment of the brand's sports versions, the article describing the characteristics of engines, braking systems, and chassis in high-performance models may be helpful – details can be found in the material Audi RS vs other models – what is hidden under the hood and chassis?.