The evidence points to an outside heat source. I may try to take that trim piece off, but I’m concerned it’s too deformed to get back on. I’ll look into getting a new one at some point.
Thanks for the info about the wiring location. I have not had a door taken apart.
looking closer at it I also see the areas shaded by the rain guard, which indicates an external heat source. Th article is interest, I’ll have to see if the place I recently moved into has the low-e windows. The...
I just saw that the black plastic piece which is attached to the door where the mirror is has melted. The aftermarket rain guard and plastic mirror case has not, and the paint on the door is still good. This indicates to me that something inside overheated. The only thing I can think of is the...