HEATKEYS

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Get free Shipping on everything $49 and up until December 25th! Call 1-800-319-8943 for custom-tailored advice audio/video electronics for the Car and Home.

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Lowest prices from the experts in car audio and video. Daily deals, fast and free shipping, up to $30 in free custom install kits on select car stereo receivers. Shop now!

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Audio Enhancers Car and Truck Subwoofer and Speaker Boxes and Enclosures.

YouTube is a place to discover, watch, upload and share videos.

- Car stereo alarm and automotive accessories Everything for your car and home Free tech section

Car audio technical information with more than 125 individual pages, 50+ calculators and wav files. The covered topics range from basic electronics theory to more advanced topics such as speaker impedance as it relates to frequency, damping factor a...

Provides bandpass, sealed and vented subwoofer box design software and science, math and engineering programs and freeware

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.