i got 12 volts. which fuses should i check. if i pop start it and then turn it off but quickly turn it back it'll crank. don't know if that helps...i'm really screwed if i can't get this running tonight. also i was messing with the head unit and now when i have the car in the on position the radio in on but when i go to start it it turns off. could there be something wrong there? i tried completely unhooking it and get the same issue