Do these plug into the factory fog light wiring?

These are designed for factory fog light locations. Test-fit before committing to final installation to confirm harness compatibility with your specific truck configuration.

Will the DRL run independently from the fog lights, or do they come on together?

The LED DRL strip is integrated into the housing. Wiring configuration depends on how you connect them to your truck's electrical system—you can wire them to run independently as daytime lights or together with the fog circuit.

What tools do I need to install these?

Installation requires basic hand tools for unbolting factory housings and fastening the new assemblies. You may need a trim removal tool if your truck has clips around the fog light bezels, but no drilling or cutting is required.