Stereo Integrity - Our b7 Audi Avant with our IB-24 subwoofer in the spare tire well. Will be completely stealth when finished. Can't wait! ______ Follow our IG, FB and Twitter and
How to Install Subwoofer - Audi B7 S4/A4 - YouTube
Audi A4 B6 B7 Cabriolet STEALTH SUB SPEAKER ENCLOSURE BOX SOUND BASS AUDIO NEW | eBay
Wicked C.A.S. > Audi > Audi - 2002-08 A4 SEDAN 1x10" Enclosure SUB BOX SUBWOOFER ENCLOSURE