Alpine - SPC-300A3 Premium Alpine Sound System for Audi A3, S3, RS3
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
Wicked C.A.S. > Audi > AUDI A3 Magic Box 10 / 12 / 13 SUB BOX SUBWOOFER ENCLOSURE
REAR SHELF SUBWOOFER SPEAKER UNIT FOR AUDI A3 97-03 8L TDI 1.8T 8L0036381G | eBay
Basser - FBaudi02 Audi A3 8P Fit-Box subwoofer enclosure
Audi A3 8L 2002 Subwoofer Stereo Standard | eBay
FBaudi01 Audi A3 8L Fit-Box subwoofer enclosure
Audi Rear Left Subwoofer / Bass Box (A3, A3 Quattro) 8P4035382E
2015 Audi S3 B&O Subwoofer upgrade 10 inch Hertz, Audison amp install walk through - YouTube
BASSER Audi A3 - 8" Fit-Box Subwoofer Enclosure 8L
3 12" NXS subs in Audi A3 | Car audio installation, Car audio systems, Car audio
2016 AUDI A3 (8V) SEDAN - RADIO STEREO SUB SUBWOOFER TWEETER SPEAKER SET-10 | eBay