Does this mirror plug straight into my factory wiring?

Yes. The connector matches OEM harness and plugs in without modification. Your power and heat functions activate through the factory control switches on the door panel.

Will the heating element work independently from my climate control?

Heating activates on its own circuit—you don't need the AC or heater running to use it. Press the heated mirror button (typically stamped with a defrost icon) on your door controls.

What tools do I need to swap this in?

Interior door panel removal is required, which typically takes a trim tool or small flat-head screwdriver. Basic hand tools—no drilling or modification to door structure. If you've removed a door panel before, this is straightforward.