Well, my headliner rattles more then a gillapi!!! Pretty embarrassing! Anyways, I found that sticking hard plastic under the perimeter of the front brace with the headliner on solves the problem.

Im trying to figure out what I could slip inside that isn't as big but while still keeping my headliner on. Those are 2 plastic swipe cards from my office building lol. I almost just need a couple of thick card like shimms. Thoughts?

 

How about some rubber or a small plastic hose in this thickness?

 

I just had all my sqeaks and rattles fixed by the AMG master mechanic at the dealer, well at least 90% of them lol, they pulled the headliner down to fix the rattles

 

I'll never understand the people with garage door clickers when these cars came with the garage door opener built in......

 

thats a good suggestion actually. I'll try the rubber out

I wish I could have the dealer take care of my squeaks. My car has aftermarket warranty and squeaks are not covered :-(

Dear Richard, I just got the car and have driven it 400 miles. Thanks for contribution to my thread. I'll be sure to program my home link and send you a vid lol