When I "crank it up," there is a rattle or (for lack of a better word) a crackle coming from the passenger side whenever the radio is played at pretty high volume. It is really hard to tell if it's coming from tweeter or the mid-speaker. It's almost like:

You know your little pretty cheap shelf stereo system with the 3-disc changer and double tape player? You know how it sounds crackly and distorted when you turn it up? That's what the speakers in my door sound like.

ANY SUGGESTIONS?