no heater or defrost in my 2001 gp gt, ive figured its a bad ignition (no blower even at 5). can i bypass the ignition swith and just put in a toggle switch to get me by..Also does anyone have a wiring diagram for the heater . ive searched hi and low but cant sem to find one.. Any help here from you guys would be amazing thanks a bunch, it only -25c right now but it drops to the -30s soon enough.