What is the best way to install my car audio system?

Tijuana Tatsak: 0 gauge power wire, a heavy duty alternator, 10 or 8 gauge speaker wire, a correctly sized box, ported between 40-50 hertz, a good head unit that puts out a decent preamp signal, and a parametric eq to shape the sound

Soraya Coodey: If your total system power is 1000 watts RMS or more, you will need to:1. Upgrade the alternator to a high output alternator2. Upgrade to a heavy duty deep cycle battery3. Upgrade the "Big 3" - that is to replace the power wire between the battery and alternator, the ground from the battery to the chassis and the ground strap from the engine/tranny to the chassis with at least 1/0 AWG wire.If your total system power is 800 watts RMS or more, you will need to:1. Upgrade to a heavy duty deep cycle battery2. Upgrade the "Big 3"Failure to do this will result in you replacing them anyway as the alternator will eventually fail.Here is a guide that will calculate what size alternator and power wires you need http://www.datafi! lehost.com/download.php?file=6d26...A second battery is never a good idea as it's an added strain on the alternator to charge two batteries AND supply power for the car. The ONLY time a second battery is useful is if the audio system is to be used with the car off.A cap is only good so far as the audio system isn't trying to pull too much from the electrical system. A cap doesn't provide more power, it's designed to 'stiffen' the voltage to the amp, nothing esle. If the current isn't there, a cap won't help. The alternator must have at least 20% more amperage power than the entire vehicle and sound system combined for a cap to be of benefit which is ironically the same requirements for an amp to be efficient. See my site for more info http://spkrbox1.spaces.live.com...Show more