Will this plug into the factory wiring harness?

Connector type not specified — confirm compatibility before ordering or test-fit the assembly to your existing wiring to verify plug match.

Do I need to remove the tailgate to install this?

Mounting method not detailed in specs. Test-fit first to identify access points and whether removal is needed for your vehicle configuration.

Does this come with the mounting bracket?

Assembly includes the light housing — any additional brackets or fasteners needed for mounting aren't confirmed. Plan to source those separately if required.