Do I need to remove the old mirror to check fitment first?

Yes — unbolts from inside the door panel. Test-fit the new mirror to the factory mounting points before committing. Once confirmed, wire it into your door harness and secure permanently.

What tools do I need to install this?

Standard socket set and a screwdriver to access the interior door panel. Wiring into your existing door harness may require a crimper or soldering iron depending on your preference for connection method.

Does this mirror come with the wiring harness?

The assembly itself is included. Wiring harness routing depends on your vehicle's interior setup — confirm your door panel configuration matches the assembly footprint before installation.