Greetings all, first time posting here

I've done some searching on the forums and I've found reports of a similar issue to the one I'm experiencing, but not exact.

2010 Cooper S with the Harman Kardon speakers.
I want to love these things

3 or 4 months after getting the car, I noticed that the middle speaker on the passenger side started buzzing when certain frequencies pass through it. Nothing terribly bassy, nothing terribly harsh. In fact, piano is a really good way to recreate the issue.
The buzzing goes away when you press on the speaker grill, so I know it's something in that area...

It takes a good 20 minutes of music for the buzzing to start, and it goes away if you open and close the passenger door.

Here's the kicker.
I have taken it to my dealer 5 times. Yes, 5.
They have replaced the speaker, the ring inside the housing, wrapped the whole inside with double-sided foam tape and even sprayed the inside with a plastic adhesive. Every time they work on it, the problem goes away for a few weeks..but then slowly comes back.

I admire their persistance, but I just want this solved. I'm starting to feel a little silly going back for the same issue over and over..

Anyone else have an experience like this? I'm ready to take it to a new dealer and see if some different eyes/ears can figure this one out.
Anything that I haven't talked about that I could maybe mention to them to check?

I appreciate the feedback!

 

I am noticing a buzzing/rattling sound emanating from that same area. The only difference for me is I only hear mine when I'm NOT playing music.

 

beam,

you don't have your location listed so where are you. if you are in New England somewhere then I can help by actually seeing the car. Many dealers do nto really take into consideration all the possible parts that could be rattling.

 

Appreciate the offer, but I don't live anywhere near NE :(

Anything specific you can point me at to bring up with the dealer? I think I've exhausted my options at the current one, and will try another.