Alpine - SPC-300A3 Premium Alpine Sound System for Audi A3, S3, RS3
Audi A3 8P 2003-2013 Vibe Black Death 8" 600 Watts Car Subwoofer Custom Bass Box Kit
Subwoofer Avant speaker AUDI A3 HAES 8L0 038 381G 2..3Ohm LPT168/25/110 FS | eBay
Alpine - SPC-300A3 Premium Alpine Sound System for Audi A3, S3, RS3
For Audi A3 8PA Subwoofer Housing 20 CM 8 Inch Woofer Space-Saving Boot | 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
dizzythedog.com
BASSER Audi A3 - 8" Fit-Box Subwoofer Enclosure 8L