I installed an AVH4000 a few weeks ago and just noticed today that my back rear speaker is not working, at all. Could this be that a wire is not connected or just the speaker dieing on me? The reason I ask is BC I don't know if the rear speakers run off the same wire coming out of the HU or if they are seperate, meaning the wires are probably just lose.

 

its a blessing in disguise, rear fill sucks, welcome to the land of better sq

 

^^^ LMFAO!!! Surprised it took even 6 minutes for styx to drop a "rear fill sucks". Good stuff.