Will this plug directly into my wiring harness?

This is an OEM unit, so it's designed to mate with factory connectors on your vehicle. Verify the connector type before ordering—some regional variants may differ slightly.

Does the heating element work independently of the defroster button?

The heating function integrates with your vehicle's climate system. Once activated through your cabin controls, it operates as designed—no separate switch needed.

What condition is this mirror in—can I install it straight away?

This is an OEM unit in used condition. Inspect the glass for cracks, test the motor and heating function before final installation, and verify all mechanical joints move freely.