There are screws on the back side of the foglight/bumpercover to access fog lights. Easiest to do when the front tires are off but can be done, jut turn the wheel far right for driver side , then far left for passenger side..There is also a wiring harness that unplugs. Might be easier to just replace them with new. There are several recent threads about fog lights that can be purchased on ebay that many memebrs here have purchased, including myself..brand new, same as factory orginals etc.
headlights..need to tak the panel out from under the hood that covers the radiator to access the rear of the headlights...I think it is even easier when you remove the grille, also accessed frm under the radiator cover. The headlights are sealed units, some say they can be opened by placing them inside an oven at like 200 for a few minutes to soften the sealer and then have to reseal.