When I changed the oil, I noticed a plastic panel that was disconnected near the engine on the right side. I removed the tire and tried to match up the holes in the plastic panel with holes on the frame. I was unable to find the proper holes. I looked on the left side for a clue, but I could not see the matching panel.
Just a simple underbody panel... When they get old and beat up they don't line up very well and lose their hardware. Easiest fix is to make your best guess of its location and get out your screwdriver gun and some spare screws and ignore the holes and just screw through the plastic so it's attached to the other plastic underbody panels. Holds way better that way compared to buying new hardware and using the worn out mounting holes.