its not hard, under the hood by the brake booster there is a little square plastic box, with a rubber cover, remove the rubber cover,there should be 1 wire, solder wire to extra wire on tak, and run the wires through the fire wall, then connect other wires, snip the 2 wires in the back of the tack so it works on a 4 cylinder, and wammo.5"tack w/shiftlight