[Huz-Z]

A late comment on those trim covers - I had the same issue with my car, so I bought a new one and popped it in place. Less than a year later, it came out, apparently because one of the tabs on it had broken off. Fearing that I had damaged it when I installed it, I bought another and the dealer tech amiably obliged my request to pop it in. Despite that, the second one fell out due to a broken tab 6 months later. I can only conclude that the OEM part is just flimsy, or at least the retaining tabs are. I think that a good approach may be to apply a couple of small dabs of glue or clear silicone to the back of the piece when installing to be sure it stays in place (not too much to make a mess or in case you need to remove it in future).