That being said, car speakers tend to fail one at a time.
However, the fact that the head unit is turning on doesnt mean its working properly.
Check the volume, fade, and pan controls.
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Test different audio inputs (i.e.
radio, CD player, auxiliary input, etc).
Test any onboard fuses.
Check for loose or unplugged wires.
In the process of checking out the amp:
Verify that the amplifier is actually turning on.
Determine whether or not the amp has gone into protect mode.
Inspect for loose or disconnected input or output speaker wires.
Test both inline and onboard fuses.
If you dont see continuity, that means the wire is broken somewhere.
On the other hand, if you see continuity to ground, then youre dealing with a shorted wire.
However, you should probably confirm that they weren’t blown out by someone cranking up the stereo.
How Can You Tell If Car Speakers Are Blown Out?
If there isn’t any continuity between the speaker terminals, that usually means it’s blown.
