Do I need any additional wiring or a relay to make this work?

This switch connects directly to your existing fog light wiring. If your fog lights are already functional, the switch plugs in and operates immediately — no relay or extra harness needed.

Will this work if my factory fog lights aren't currently working?

The switch itself handles on/off control only. If your fog lights don't turn on, the issue lies elsewhere in the system — bulbs, wiring, or fuse. Swap the switch first to rule it out, then diagnose further if needed.

Does this come with mounting hardware and clips?

Switch assembly and connector are included. Mounting brackets match the factory opening — no additional fasteners required for installation.