speakers in my car, recieve power(volts and amps) but No Sound

[teh_mugen18]

On my car, i used to have all four speakers working correctly on a Sony Xplod setup until randomly 2 of them have decided to not work anymore. I checked with a meter that they're recieving voltage and current, but they arent making any sound.

And the even stranger part of it is that its the right front and the left-rear that arent working, and if you turn the Fade to full right, neither of the speakers work even though they're on opposite sides.

[TSiFTW]

If there is signal going to the speakers try checking the speaker terminals with an ohm meter to see if the voice coil is bad. If it is bad there will be a dead short in the coil and it will read no continuity.