Do these mirrors use factory mounting points?

Yes — these mount at the original attachment locations. No drilling or bracket fabrication required.

Will the heater work with my truck's existing wiring harness?

These mirrors are designed for OEM integration, but verify connector compatibility with your vehicle's wiring before final installation. Your truck's service manual will confirm available power circuits.

Can I operate the heat and power adjustment separately?

Power adjustment is driver-controlled via the door panel switch. Heating function typically activates through the vehicle's climate or defrost controls — specific behavior depends on your truck's electrical setup.