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why is there a humming sound threw my speakers and or sub?

theres no noise(except music) when the car isnt running and the stereo is on but as soon as i start it a humming noise comes threw my speakers or sub,i tryed running just my speakers threw the amp and only my sub but either way it still makes a noise and more so when i accelarate

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  • 1 decade ago
    Favourite answer

    it sounds like a grounding issue.. look to see if your ground wire is grounded correctly. try to reground the wire in a different spot and if it the metal has paint sand a little bit off so u have a nice shiny ground. hope this helps

  • 1 decade ago

    Ground hum. Your power supply to your audio compnents needs filtering.

  • 1 decade ago

    You need to turn the speakers down.

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