Hey yall. I wired up a set of electric fans on the truck with an adjustable temp control. Well, I can't tell when the fan is coming on or not (temp stays at 180* whether the fan is on or not, did this by driving around with fan unplugged) so I want to hook it up to an ignition hot wire. My question is is where do I find an ignition hot wire? I don't have a haynes manual or anything. Thanks for the help.