I recently replaced my 4 year old Rockford Fosgate 6x9's with some JBL 6x9's, and upon doing so, about 5 hours later both speakers make static noises when reaching medium volumes.

I noticed that when I Balance to the Right, the speaker is clear and get quite loud. If I fade towards Center or Left, both speakers go completely static.

I have already tried my left speaker in the right door and it sounds great. So it has nothing to do with the speakers themselves.

I double checked my harness and everything looks great.

Just looking for some more ideas.

Thanks for the help.