Audi A3 8P 2003-2013 Vibe Black Death 8" 600 Watts Car Subwoofer Custom Bass Box Kit
Audi A3 8L - Subwoofer boards with double bass system - Jehnert Sound Design Automotive
Audi A3 boot | Car audio, Car audio installation, Car audio subwoofers
Upgrading Audi A3 OEM Subwoofer with aftermarket 8" JBL woofer and DS18 Candy Amp in stock location. - YouTube
BASSER Audi A3 - 8" Fit-Box Subwoofer Enclosure 8L
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