My coupe's driver side rear window or window trim has developed a squeak that sounds like a squeegee on glass. It used to happen occasionally, but now it squeaks when going over the slightest bumps. Rather annoying as it's right behind my head. Would appreciate any thoughts on how to cure it. Thanks!

 

My car had a similar noise. I fixed it by putting a small amount of grease on the Bolt heads that the Trunk Lid seats on when closed. Some of the Bolts have a Rubber Bumper on them and some do not.

 

Thanks Paul! I'll give it a try.