DoubleCab Fold-down seat surface treatment

So the rear seats have a really tuff plastic but slippery surface when they are folded down and was wondering if anyone has put something more than a rubber mat or carpet over it. Was thinking bedliner or maybe a few rubber adhesive strips.

Reason for asking, we have a dog crate/carrier that is tied down with some ratchet straps attached to the latch loops for the seat locks which works, but still slides around a little. Can't really cinch it down too much w/o distort the shape of the carrier.

Did the search thing and understand about prepping the surface, and does anyone have experience with disassembly, because I will not even entertain the idea of that process inside my 2 week old taco.