Possibly. From my experience dynamat is still fairly hard. A piece of plastic knocking against it would make some noise still. Dull thud noise, but still present.
The wiggling of that vent assembly seemed to be the issue. The felt I put in were more bumpers. They are thick and somewhat wedge...
Thanks to this thread (and another on rivianforums), I think I was able to quell the rattling under the speaker grill. I made a terrible how-to video based on what I learned here. Hopefully this helps someone on the fence about doing this.
Thanks to this thread, I think I was able to quell the rattling under the speaker grill. I made a terrible how-to video based on what I learned here and in another thread. Hopefully this helps someone on the fence about doing this.