sure, it's possible.
but, the upper grill is not a good place for fog lights, as they need to be mounted low to work best.
high mounted lights are best for driving lights, ie, supplements to your high beams.
Howdy, yes after market lights (driving lights) are possible, just look for ones that aren't to deep. I made some simple L brackets and they mounted up fine. See my Sig pics. Sorry on my new Android and can't find my original thread .