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Audi A3 8L Fit-Box subwoofer enclosure
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Audi A3 - Retrofit
For Audi A3 8L Subwoofer Housing for 20 CM 8 Inch Woofer Space-Saving Boot 4047442079382 | eBay
Has anyone added a subwoofer or amplifier to their 8v? | Audi-Sport.net
Alpine - SPC-300A3 Premium Alpine Sound System for Audi A3, S3, RS3
