Will this mount to the factory holes without drilling?

Yes — this mirror uses factory mounting points and attaches without modification to your truck's door panel.

What connections do I need to make for power and heat?

The mirror requires connection to your vehicle's power and ground circuits, plus the turn signal line. Consult your F-150 service manual for wire routing and connector locations specific to your model year.

Does the heated element work independently from the turn signal?

The heat function operates separately — you can run the heater without signaling, and the amber light functions independently of the heating element.