For Audi A3 8L Subwoofer Housing for 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
SUBWOOFER AUDI A3 Serie (8P1) 8P4035382C (0812) 1526211 | eBay
Per Audi A3 8PA Subwoofer Alloggiamento 20 CM 8 Pollici Woofer Salvaspazio Avvio | eBay