I have a 2002 Silverado. After breaking my mirror ,just the glass, I discovered I have a couple of extra electrical connections inside the housing besides the remote control wiring. I am guessing these are for turn signal and mirror defrost. What would I need to add to make this work? The new replacement mirror is two way with everything but an arrow masked off from the back side. I was thinking about putting a 5 watt 47 ohm resistor in for a heating element and an LED brake light for the turn signal unless I can find out what are the factory parts.
Where would the defrost switch be located.
Jimmie