Thanks for the replies!
You'll notice int he photo that Ive already removed the screw on the top (you can see space between the mount and the trim). Even with that Torx screw removed, something is obviously still holding it in place. As suggested, it seems there's a second screw holding it from the bottom (thanks for the parts diagram). I'm wondering, if I take the seats out, and remove the back panel (item #2 in the parts diagram), can I access that screw? Or is there more dismantling that is needed??
What a PITA!!
Evan