Like many members here, my rearview mirror has been rattling like crazy. Earlier in the week I took the mirror apart and put some foam inside of it and put it back together. So far it has been much quieter. If the rattles come back, I'll put some more foam inside. Give it a try, it definitely cut down on my rattles.

 

I had a rattle, but it just went away somehow after 3 years. maybet he subs helped it???

 

My subs made it 10x worse to the point I couldn't stand it any longer

 

yeah I have that too... I hate it makes me want to break it