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I'm almost positive that your ground wire on the amplifier is loose, check the connection to the amp and then check the connection to the ground on your car, make sure it is tight and corrosion free. If this doesn't work, make sure your ground wire is of heavy guage ( thick). make sure that the ground wire is not any longer than it has to be. Keep in mind when it comes to ground wires the bigger the better. Make sure you have a healthy ground on the car (bare metal or the frame itself). Hope this helps. Shane (vmax33)

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16y ago
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16y ago

Possibly dirt, or dust in volume control.

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Q: Why does my car amplifier turnoff when I turn up the volume sort of high It never used to?
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