Car Radio / Stereo Installation Kit, speaker information, car radio / stereo installation help and instructions, aftermarket radio / stereo installation

Free technical information for mobile electronics installers with diagrams, charts, and calculators for Ohm's law, relays, diodes, resistors, vehicle wiring locations for stereos, alarms, remote starters, keyless entries, cruise controls, mobile video, and more. Our members include many certified installers and knowledgeable enthusiasts.