Does this come ready to plug in, or do I need to wire it myself?

The harness and switch are included, but you'll need to run power from your battery and ground to the chassis. Basic electrical skills and hand tools are all you need—no special training required.

Will these mount where the factory fog lights go?

These are designed to mount at factory fog light locations. Test-fit before you commit to fasteners or adhesive to confirm alignment with your bumper opening.

Can I replace just the bulb if it burns out later?

The amber bulb is pre-installed and removable. Replacement bulbs of the same type are widely available and inexpensive—no need to buy a new assembly.