I got a set of power heated mirrors for my 2005 Chevy Silverado. I currently have no power windows or locks in the truck, so there is no factory wiring. I installed the mirrors today and got the heated part working simply by sending power to the heating element thru a dash switch and some wire. I need to know how to wire the mirror motors to get that part working. Can anyone explain how to wire the mirrors to a switch? Is the theory behind power mirrors based on revesring the polarity? I have a schematic but it is hard to decipher, since I am not an electrical guru....