its real easy, just follow the instructions in the manual. if am not mistaken there should be only 2 wires one for ground and the other splices into the lightbulb light that luminates you insrument panel. only reason i haven't done mine is because i haven't found a right path to route the rubber tube back in the car without putting next to anything that will melt it. i mean amn its right there on the engine block, under the exhaust manifold, on the side of the alternator and right in front of the radiator