I just got two new diamond speakers so i know the speakers aren't blown but every once in awhile i'll hear this nasty crackling noise coming from the rear speakers. If i turn the volume up REAL loud then back down it'll stop doing it. Any ideas what can be causing this?

 

lose wire somewhere....bad connection i would think....thats what mine was in the same situation....just my .02

 

Could be grounding out...

What kind of radio do you have in there? stock or aftermarket?

Ive seen the speaker outputs on different radios go bad before.

Could be that?

 

my fronts do the same thing sometimes, even if i press mute you can still hear it crackling connections are fine.