i am finally ready to install the 472. but now i have a different problem. i do not know where my sensors go on the 472. the 472 have 4 wires at different locations on it. my pos haynes manual does not tell me what these are for. i have a set of autometer gauges in the monte. i have the tach, oil pressure, and tempature gauges. where do i hook these up on the engine. and how do i do it. the engine sensors are just wires with a clip on the end that plugs into the engine.