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Thread: Buzzing/ distorted sound from stock stystem need help please

  1. #1
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    Buzzing/ distorted sound from stock stystem need help please

    Hey everyone

    so 2010 mustang gt has a shaker 1500w system in it (1,000watt for the speakers 500 for the subwoofers on two seperate amps)
    This is factory equipment

    with the engine on or off, at low levels of volume i get a lot of whine or buzzing sound.. if i pause a song and turn up the volume you can hear it to, almost sounds like white noise sometimes or other times like a A.M. type of radio. At volume 1 i get more white noise then i do music.

    I figured out, the noise is only comming from the subwoofers. If i disconnect the power to the amp for the subs the noise goes completely away. The dealer replaced my head unit, it did nothing.

    Im open for suggesting and testing ideas. I really dont know where i should go from here. I checked to make sure all grounds are secured and connected and they are.

    Help please

  2. #2
    MySQL Error soundman98's Avatar
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    if it is all factory equipment, then i believe it should be a warranty issue... i really don't see any reason the factory equipment should be making any odd noises unless there were some changes made to it at some point.

    are you the only owner of the car? do you know if there was ever any aftermarket audio equipment installed at any point?

  3. #3
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    hey thanks for the reply

    second owner, no aftermarket equipment in it. Ive taken the head unit out, inspected the wires everything looks stock. the connectors looks good to all the amps. I do electronics on emergency vehicles so i got an eye what to look for, im just not much of a stereo guy. could adding a ground loop help?

    thnks

  4. #4
    MySQL Error soundman98's Avatar
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    it might, but because everything is stock, you will probably have a tough time installing it due to everything using ford-proprietary connectors.

  5. #5
    FLAC PhilG's Avatar
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    Theres got to be something physically wrong. There has to be a broken or missed ground (not likely rusted on a 2010), an alternator that's got issues or something wrong with the specific audio pieces/ wiring. Maybe an interconnect wire (if everything isn't on the buss) that got the shielding stripped during assembly.

    I just can't imagine it's an inherant design flaw that needs extra parts thrown at it. Most owners would not tolerate the symptons you describe after paying the coin they demand for that system. Personally, I would start troubleshooting component by component rather than trying to band aid it with isolators etc.
    My 2007 Ford F350 Work Log located HERE

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