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
2016 AUDI A3 (8V) SEDAN - RADIO STEREO SUB SUBWOOFER TWEETER SPEAKER SET-10 | eBay
Audi A6 4F - Doorboards with 3-way soundsystem - Jehnert Sound Design Automotive