Why is my stereo working but no sound?
Silent stereos are usually caused by low power, a wrong source selection, disconnected or faulty speaker wires, broken speakers, or a malfunctioning source component.
Why is there no music coming out of my car speakers?
When all of the speakers in a car audio system all stop working at once, the problem is usually in the head unit, in the amp, or in the wiring. In some cases, an issue with the wiring between the head unit and a single speaker can even cause all of the speakers in an entire car audio system to cut out at once.
Why is my amp not putting out sound?
Possible causes include: The speaker is completely blown. The output transformer is open or otherwise faulty. The speaker jack is not wired correctly.