Will this mirror work with my factory wiring harness?

Yes. This is a direct OEM replacement designed for factory electrical connectors. Connect to your existing harness and the power and heat functions are live immediately.

Does the heating element work independently from power adjustment?

Both functions run through the same electrical circuit. When you engage heat from the cabin controls, the heating element activates. Power adjustment and heat operate on the factory control setup.

What do I need to do before installation?

Before mounting, confirm the connector matches your vehicle's wiring. Test power and heat function at the connector before final installation to catch any electrical issues early. Then mount using factory bolt points.