Old Renegade

i guess it depends on what brand of tach you get. mine has four wires(positive-red, negative-black, sender-green, then a white wire for the lights for the tach then two small wires that the instructions say you got to cut one if its a four cylinder. the small wires are brown and blue i think cut both for a v-8 brown for a six and the blue for a four. my tach is a autometer 5" monster tach phantom series with shift light.