My inside RV mirror vibrates excessively only when the sunroof is open.It is very annoying to me. At my 100 mile check up I pointed out this problem to the service writer, and was told that the mirror on my car was actually the upgraded part that was now being used as OEM. I was told that there was no other remedy for the problem. I know that there was a TSB for the 07 cars. I took a copy of the TSB along with me for the service. Mine is an 08. Anyone have a recommendation