Buzzing in the front passenger side door

When the volume/bass is just right, I hear a buzzing coming from the joint between the passenger armrest and window/power lock buttons. How do I gain access to this area, and what’s the best way to eliminate the buzzing?

 

I'm no help but I also have a buzzing coming from that area too in the 1800-2200rpm range usually, although mine seems lower, like near the speaker/door sill. I've had it into the dealership with no luck, as well as stuffing foam strips in every crack I can find. Still driving me insane. I can hear it still at volume 35-40 too. Good luck on your buzzing and maybe someone has some useful info.

 

Just give that whole piece a pull, it is just on with clips. Underneath it will have 2 plugs for the window and power locks that can be removed. Or you can just take the whole door panel off and get a look. Either way you will have a few things to unplug and the 2 cables for the door handle. Just pay attention how they come out, it's pretty simple

 

Sounds travel all over while sitting in the driver seat.
I thought the same about the arm rest once and it was the center separator pc in the cupholder in front of the shifter.
Another time it was the glovebox organizer.
Good luck.