Hey guys my rear speakers went out and im trying to figure out the source. Speakers are not blown or damaged just came in and out and now completely out. Could it be head unit, CDM box, or wires? Took the head unit out messed with the wires while it was playing no audio coming in from the speakers. Then messed with the wires connecting to the rear speakers nothing. And then the
CDM box nothing.

Could it be head unit, CDM box, or wires?