For Audi A3 8PA Subwoofer Housing 20 CM 8 Inch Woofer Space-Saving Boot | eBay
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2017 Audi A3 Build Log | DIYMobileAudio.com Car Stereo Forum
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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
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2017 Audi A3 Build Log | DIYMobileAudio.com Car Stereo Forum