Can a good audio shop fix your rattles due to bass?

I took my S5 to the dealer for a pretty significant rattle when bass is played, even at moderate volumes. Turns out my speaker was blown, and they replaced it, but it still didn't fix the issue. I figured out if I press on the door handle it stops the rattle. They say they will try to fix it.

Later on I noticed that in some songs, the rattle seems to be coming from the back.

My sound system is B&O, and I'm wondering, if I go to a car audio shop, are they capable of narrowing down where all the rattles are coming from, apply tape, and potentially replace some of the subwoofers if they struggle at the low end? I'm thinking if they have some kind of song that plays purely bass in various directions so that they can isolate each speaker to see if it's problematic.

I don't mind going through Audi since my vehicle is under warranty but it seems like it's going to be an ongoing situation with lots of back and forth. I rather get it all taken care of at one time for peace of mind, even if I have to shell out some funds.