Here's the front of my car. The slots for the grill are a little smaller than an inch and angled downwards at 5-10 degrees.
Here is a closer look from the inside:
Any suggestions for placement? I do not know if I can stick one of the LI heads into the the slots. The other possible placement is in the ground skirt / bumper, but I would have to move them far forward so they could see vertical. Any help is appreciated.