Basser - FBaudi03 Audi A3 8P Sportback Fit-Box subwoofer enclosure
Audi A3 8P 2/3-Türer Subwoofer Bass Box Speaker | eBay
Audi A3 S3 Car radio stereo speaker Sub Box Subwoofer Enclosure For Rear Bass - JT Audio
For Audi A3 8P 3-türer Subwoofer Housing for 20 CM 8 Inch Woofer Space-Saving 4047442079399 | eBay
M.A.P Audio & Customs - Custom made fiberglass 8" subwoofer enclosure for an audi a3 8v. This was hand made with mdf rings and support braces. It was then fiberglass and covered
24 Layer Ported Speaker Box BASS TEST! Audi A3 - 2 CT-Sounds 8" Meso Subwoofers - Video 3 - YouTube