Hi All, While doing a body job on my 87 TDT I realized the car has heated side mirrors. I assume this anyway because of the power wire going to each one. There is power there to the mirror ( all the time ) I assume there must be a thermostat to turn them on and off. My mirrors have never worked since I owned the car but I would like to have them working. Is there any ways to repair them? Any of the parts on the mirror replaceable, thermostat for instance?