Hmmm... let's see, about 700 watts, let's assume 75% efficience (PPI is pretty good for efficiency) we're looking at 933 watts actual draw, or about 72 amps at 13 volts.

Y'know what? You're not far out of line with 4 gage wire -- that would be good for a 24 foot run. Assuming your amplifiers are in your trunk, you're probably looking at a 15 foot run, which would require 6 gage wire to have less than a 1/2 volt drop.

My wimpy little 100 watt system, on the other hand, with its short cable run (about 10 feet), could actually get by with 24 gage wire. So my 8-gage wire is serious overkill! It's not loud, but very few cars have ever out-scored me in sound quality.

My apologies -- you're doing it right.

tanstaafl.

"There Ain't No Such Thing As A Free Lunch"