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
![i-sotec - Sound system "plus digital" - "sound upgrade" retrofit set - Audi A4 (B6/B7) 8E - Audi | VAG-Navisystems i-sotec - Sound system "plus digital" - "sound upgrade" retrofit set - Audi A4 (B6/B7) 8E - Audi | VAG-Navisystems](https://www.vag-navisystems.com/img/productos/b/i-sotec-sistema-sonido-plus-digital-kit-reequipamiento-sound.gif)
i-sotec - Sound system "plus digital" - "sound upgrade" retrofit set - Audi A4 (B6/B7) 8E - Audi | VAG-Navisystems
![Caliber BC112SA - Subwoofer para Coche (Altavoz de subgraves (subwoofer) con Caja acústica, 600 W, 4 Ω, 30,5 cm (12"), Encerrado, 395 mm), Gris : Amazon.es: Electrónica Caliber BC112SA - Subwoofer para Coche (Altavoz de subgraves (subwoofer) con Caja acústica, 600 W, 4 Ω, 30,5 cm (12"), Encerrado, 395 mm), Gris : Amazon.es: Electrónica](https://m.media-amazon.com/images/I/51tY-5Gn5DL._AC_UF350,350_QL80_.jpg)