my car harness has been cut off from a previous owner, and now im tyring to install a 2000 civic si stereo in, my problem is that i cant seem to find the power wire. i have bought a si harness(not the stereo harness, the CAR harness) that plugs into the stereo but when i try matching up the red, black, and yellow wire into my car. it wont turn on. does anyone know the main power color wires from a integra?? i try it on my freinds civic and everything was a plug&play, everything work perfectly.

if anyone has a diagram color of an integra car harness, it would be greatly appreciated if you post it. Thanks'