So when I play music I hear a rattling on certain songs on my back top right speaker behind the passengers head. I have the els system to I believe that is one of the extra speakers with the package. Is their a guide on how to get to that speaker. I don't know were to start to take of the cover to look inside so I can either replace it if it is blown or to just add microfibers or something like that to prevent it from rattling. Thanks!