I put a pair of small rectangular lights on the bottom "slots" of the front end of my SE using 5lb weatherproof 3M adhesive doublestick tape. I mounted them all the way to the left and right so as not to block any part of the radiator. The tape eliminates trying to get a drill up in there, and doesn't leave any holes, so you can always remove them in the future. The tape lasts for years (I know by experience) and is more than strong enough. The only drawback to the adhesive is that you have to make sure to get a good alignment before sticking them.
Former 2001 Chrysler Intrepid SE owner
Currently own a 2012 Ford Focus