i have a greddy turbo timer that i got the other day. It has a wiring harness on it already but i'm not sure if it even belongs to my car. Let me know if i need to get another harness, and where the hell it plugs in..???? also where would u run the postive wire to a boost gauge for the light...? i had it with the radio but i think the bulb got burnt out...please help thx