I don't think you have to have a casita to answer this question.
My front parking lights on the camper need replaced. The contacts have corroded as such that lighting function is intermittent. I have the replacement part (I'm replacing the little assembly that holds the light bulb), but I can't for the life of me figure out how to remove the two grommets that affix the light fixture to the trailer. it isn't a phillips screw or anything, just a round grommet with a round opening in the center.
If you don't know what I mean, I'll post a picture later.
It's a pop rivet that has to be drilled out but wait for someone here to tell you the drill size because i'm not sure.... but it is definately smaller than the cap size on that rivet. When it's out just pop rivet another back in to hold in place.
Joe and Linda
2013 Casita SD
Dodge Ram 4x4