Anyone have any ideas how to "tighten up" the rearview mirror in an SL500? The mirror seems "loose" where it connects to the pilon from the top of the windshield area, how do you remove the plastic cover that allows access to this "pilon" without breaking the plastic and after its removed, is there a way to eliminate the loose-play? The mirror itself is fine, just irritating to have the mirror vibrating when I look into it to check traffic.

Thanks, Steve