Will this plug straight into my factory wiring?

Yes. This is an OEM mirror built to the exact electrical specifications of your vehicle—it connects directly to your existing harness without adapters or modification.

How do I know if the heating element works before I install it?

Test it on a bench before mounting. Apply 12V power to the harness connector; the mirror glass should warm to the touch within 30 seconds if the element is functional.

Does this mirror come with new mounting hardware?

The assembly includes the mirror and mechanism. Reuse your existing mounting hardware from the old mirror—the bolt pattern matches factory spec.