Does anybody have any ideas on how to make and wire in a blower motor bypass? The blower motor in my truck wont start when its below -30 outside. Didnt use to have that problem until I had to replace the blower motor resistor two years back. GM apparently issued a letter saying that the part could be replaced or whatnot, but I never had issues with the original until it died. (2003 chevy silverado) So now, I know for a fact that my thermostat is working, when i get the truck moving down the road I can actually feel the heat moving through the vents very gently, and after about 5 minutes i can turn the blower motor back on and itll power up properly. So could this also be related to the temp controls on the dash? Either way, does anybody have any ideas on how to wire a switch for the blower? Maybe put a wire coming from an ignition source so it comes on with the auto-start, put an inline fuse (wouldnt know what size, 20 amp?) and just wire that to the main power wire of the blower? Would that work? Would i still have control via the temp controls if i turned the switch off? Thanks for the input.