Do these mount at the factory fog light locations?

Yes. These mount at factory rocker points with no drilling or brackets needed. Test-fit before final installation to confirm clearance with your specific vehicle state.

Does the switch wire directly into the factory harness?

The switch connects via the integrated wiring on this assembly. Confirm your vehicle's factory fog light harness is intact before installation—if it's been cut or removed, you may need professional electrical routing.

Will I need to paint the bezel trim rings?

The bezel comes finished. If your trim color differs from stock black, painting or wrapping before installation gives the cleanest look and avoids handling painted surfaces post-install.