Im thinking if it is the speaker wires, how come both went out at the same time.

 

With everything going out at the same time seems more global than coincidental. With aftermarket stuff anything can happen.

 

Speaker fluid shares the same tank as wiper fluid, probably just out of speaker fluid.

Like slightly2ned said probably just a ground that worked it's way loose. The head unit powering on and working normally?

 

Head unit works fine. It powers up and all that but no sound.

 

that's a good one. LOL

 

Check the setup of your radio. Maybe someone turn the speakers off

 

Is the Mute button on?

 

Since the radio is powering up, Id check the harness which attaches to the rear of the radio - determine which ones are the speaker leads & trace them as far out as you can to see if there is any damages in the lines.


Double check that the speakers are connected properly & there is no short (considering the whole body of the car is ground & if your speakers are directly attached to the door without any insulation between the door skin & radio, then make sure that the red + wire isnt making contact anywhere).

Are you using coaxial or component speakers - is there an amp in this system?

 

This is assuming you are not running components or an amp in between.

pull the head unit out. you can test the wire connections with a small 1.5v battery. speaker ground to the negative of the battery, and brush on/off with the other (+) wire to the positive terminal of the battery. if the wires and speakers are in working order, you will hear static noise.

btw, speaker fluids are stored under that door panel that you are suppose to clean with only brake fluid.

 

I would be amazed if he had 12V hitting the chassis and the only effect was the speakers didn't work.

The most important question to answer here is whether or not you have an aftermarket amplifier in the car. That would explain a lot.

Regardless, since you've already tried swapping back to the factory stereo, try connecting an amplified audio source to the speaker leads that is independent of the car like a battery powered radio or boom box. See if you can get some sound out of the speakers that way and let's start ruling out subsystems.

If none of the speakers are working, the problem is most likely not local to where they are mounted, so there is no sense in tearing your door panels apart.