I have the basic mirrors an 03 silverado comes with. Im upgrading to the tow mirrors with the manuel spot mirror on bottom. The mirrors i have now are electric w/ signal. i was wondering, i found a site that offers the pair cheaper then dealership cost, but im not seeing signal mirrors. They do have electric with heat. If i bought those and plugged them in would the heater work on them or would i have to the pc programmed for that.

 

no one has the answer?