Do I need a wiring harness adapter to install this?

The switch uses factory connectors at the steering column — no adapter or rewiring needed. Plug directly into your existing harness and you're done.

Will this work with my truck's existing stalks and controls?

Yes. The switch mounts to the factory column position and operates with your original stalks. All controls function as designed.

What if my headlights or turn signals don't work after installation?

First check that the connectors are fully seated. If lights still don't work, test your vehicle's fuses and bulbs — the switch itself is solid, but a blown fuse or bad bulb will kill that circuit regardless.