Fog lights have a cover. It pops off by using a straight small screw driver and pushing down/in the clip insert. Each cover has 4 inserts. Use your cell phone flashlight and you will be able to see it easily. Two on bottom, one half way on side and one at top other side.
After the mesh like cover comes off, 3 screws hold the fog light assembly. Unscrew, pull the clip out of back? Turn old fog light and replace with LED