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Audi A4 (B8, 2008->) avant stealth box for subwoofer 10" (250 mm).
Audizine Forums
a4mods.com :: - The Premiere Audi A4 Modification Guide and Pictures Library
a4mods.com :: - The Premiere Audi A4 Modification Guide and Pictures Library
A4 B8.5 Avant Subwoofer tear down. | Audi-Sport.net
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a4mods.com :: - The Premiere Audi A4 Modification Guide and Pictures Library
Audizine Forums
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For Audi A4 B8 8K Saloon Subwoofer Housing for 25 CM 10 " Woofer Space-Saving 4047442079450 | eBay
