Audi S3 8P Rear Door Bose Subwoofer Loud Speaker Box Left N/S 8P4035382C

Audi S3 8P Rear Door Bose Subwoofer Loud Speaker Box Left N/S is an original audio component designed for installation in the rear left section of the vehicle. Engineered as part of the Bose system, it provides consistent bass performance tailored to the acoustics of the Audi S3 8P interior. This is the ideal solution for users who want to preserve the factory audio character while maintaining high sound quality.

Specifications and technical data

• SKU: 8P4035382C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8P4035382C
• Substitutable numbers: 8P4035382C, 8P4 035 382 C
• Location on the vehicle: Rear, Left
• Category: Door Panels

Purpose and Audi compatibility

The tube-style subwoofer has been specifically constructed for the Audi S3 8P model, ensuring the enclosure is perfectly matched to the geometry of the trunk and side trim. Its placement in the rear left side zone allows for efficient use of cargo space without the need for additional, universal bass boxes.

Factory integration with the Bose system means the speaker works seamlessly with the original amplifier and wiring, which simplifies installation and reduces the risk of incorrect connection. For the user, this means maintaining interior stylistic consistency and predictable, stable audio performance.

Subwoofer construction and role in the Bose system

The subwoofer in the Bose setup is responsible for reproducing low frequencies, relieving the other speakers in the doors and dashboard. As a result, the entire audio system operates in a more controlled manner, providing a fuller and better-balanced sound.

• Dedicated tube enclosure matched to the side of the trunk.
• Designed for operation within the Bose multi-speaker system.
• Fixed position in the vehicle, ensuring repeatable acoustic conditions.

This configuration allows for clearer bass without overloading the interior with vibrations, which translates into acoustic comfort during daily use.

Vehicle placement and installation aspects

The component is intended for installation in the rear left part of the body, in the area associated with Door trims and side trunk panels. This placement:

• facilitates service access when removing side trim,
• allows for a flat trunk floor,
• minimizes interference with the body structure.

In practice, installation comes down to correctly seating the tube in the factory location and connecting it to the existing wiring harness, which is beneficial both when replacing a damaged part and when restoring full Bose system functionality after previous modifications.

Characteristics of the used component

The Bose speaker in this configuration is a used part, which in the case of original audio components often represents a reasonable compromise between cost and maintaining factory specifications. Such items are frequently chosen for:

• repairs following mechanical damage or trunk flooding,
• restoring the original audio system after removing aftermarket installations,
• completing missing equipment in an Audi S3 8P.

By maintaining the original design, the user receives a component consistent with the vehicle manufacturer's specifications, which promotes stable operation of the entire sound system.

Integration with trim and other interior elements

The tube-style subwoofer works in conjunction with the side panels and trim, creating a visually and functionally cohesive module in the rear of the car. Proper fitment with trim elements limits the occurrence of unwanted resonances and squeaks, which is important at higher volume levels.

If you are planning a comprehensive repair or upgrade of the side and trunk area in your Audi and need other items from the same group, such as side panels, covers, or door finishes, check out the available parts in the Audi Door trims category.

For users interested in a broader approach to vehicle maintenance, including selecting components by catalog numbers and diagnosing other systems, the article describing the principles of operation and maintenance of the fuel system may be helpful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.