open the compartment for access to ecu, take a 10 socket and unbolt the harness from the ecu, connect the green wire with pin 3 tach signal, yellow eith pin 45 camshaft position sensor (position signal) and the red and black i connected thru my radio as i didnt want to mess too much with the ecu's wiring the white goes to the handbrake or you can leave it out like most people. heres is a bootleg version of another members post i edited. To join the wires i used regular solder and shrink wrap
i have mine set too 3on the 1st rev 4 on 2nd and the gain 9 for major noise, good luck
