This is probably an easy one, but the headliner of my K1500 has flat-faced, round "buttons", about 3/4 of an inch in diameter, around the edge of the entire headliner. I assume that these are some kind of clip, but I cant see anyway of disengaging them other than prying and popping them off.

I have a thin steel siding tool that should do the job nicely. I just want to make sure thats the way they are removed, as I will need them for the installation of the new headliner.

Any tips/advice?

Thanks!