Here is a brain twister....

Radio has power. Time or station appear when i press the power button.
Changed radio to another factory dodge radio and have the same problem.
changed radio to a new head unit and have the same problem.
No sound.
I do not have an amp under the seat.
I do not have the Infinity sound system.

Just no sound.

Fuses are good.
Any Ideas?
I really don't want to install a whole new system and wiring.

 

Speakers bad or wiring to speakers disconnected

 

All sound went out at once. I can't believe all 4 went bad at the same time.
wiring harness checked and rechecked.

does the sound go straight to the speakers from the harness ?
Or is there maybe a hidden amp or something in the middle of the line?