Learn why you should install Oxygen Free Copper (OFC) cable in your car audio system. In this video we teach you about what OFC cable is the dangers of not using OFC and the benefits of using OFC. Next time you order some power/ground cable or an amplifier installation kit from Sonic Electronix make sure your wiring is Oxygen Free Copper (OFC). Amplifier Installation Kits: http://www.sonicelectronix.com/cat_i43_amplifier-wiring-kits.html Power/Ground Cable: http://www.sonicelectronix.com/cat_i165_power-ground-cable.html Sonic Electronix: http://www.sonicelectronix.com/