Phil,
Yes there is a seperate 4 wire quick connect for the wires, or it can plug into the factory (correct harness).
It is a company owned vehicle (but my daily driver), so not really wanting to put much money into something that is not mine.
I have a 2018 Silverado WT with the wifi.
My truck came with the heated standard mirror, and I have upgraded to the heated towing mirrow with turn signal (DPN)a
The body side connector has all the pins required to connect the turn signal/cargo/park lamps. Does anyone have the PN for the TE receptacles that goes on the doors side. The mirrors I bought have a seperate connector that all I have to do is zip ties these 3 wires to the existing harness and get it to the door side.