Will this mirror plug straight into my truck's wiring?

Yes—this is an OEM assembly designed to match your vehicle's factory electrical connectors and harness. Connect it to the existing mirror harness and you're done. No adapter or rewiring needed.

Does the heating element work independently from power adjustment?

Both functions run through the same power source. When you turn on the heated mirror feature via your dash control, the heating element activates. Adjustment and heat operate on a single electrical circuit.

What condition is this mirror in—new, used, or refurbished?

This is a new OEM assembly. No prior wear, no reconditioned parts. It carries the same specs and fit as a replacement mirror from the dealership, without the dealership price.