In my 03 CLS im having this two sound problems. Some times I hear a winding noise from the rear speaker that gets louder or faster as the car accelerates. Second for some reason some times my rear right speaker rattles as if its blown when its hitting bass. I dont know what it can be because it does it on and off and not even everyday, and the speaker sounds fine when its not going it. Do anyone know what kind of problem I am having?

 

I went to an audio shop today and they said it could have somthing to do with the previous owner of my car having a system and took it out before they tradded in he car but not uninstaling it right.

 

i am guessing it would be the speaker since usually if you get feedback from roadnoise it will come out on one side or all four speakers..

 

k thanks