u/Creative-Trash-419

I'm trying to remove an aftermarket hitch that the previous owner installed. It seems I have to remove the rear bumper to access the bolts to remove the hitch.

When trying to remove the bumper. There's a 10mm nut behind the liner in the wheel well on each side. I can remove this no problem. Any Youtube video I've watched shows that this is the only nut to remove behind the liner before I should be able to start popping the bumper off but It seems on my model there's another one deeper behind the panel. Probably about 8 inches further in. I can feel it with my fingers but not sure if I'll be able to get a socket or wrench on it. Perhaps It's not related to my bumper and not required to take off?

Has anyone experienced this on their model?