Which Direction Should I Point my Subwoofer? - Sonic Electronix Learning Center and Blog
Tuning your subs
Car Audio Installation Winston-Salem, NC | The Stereo Shop
How to Install a Subwoofer in your Car
How to install an amp and sub in your car | Crutchfield video - YouTube
Places to Install a Subwoofer in the Car: Trunk, Rear Seat & More | dubzzle
Car Electronics Professional Installation - Best Buy
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