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    Interference on BMW e46 Harman Kardon

    Hi all

    I've got an issue with my 2003 BMW 330 coupe which has the optional harman kardon stereo upgrade fitted.

    I understand that there is a seperate amp in the boot with this upgrade,

    I'm experiencing a annoying issue where there is a constant static noise whilst the player is on quietly or even off. If the ignition is not on, there is no interference it's only when the ignition on. Head unit (standard) on or off makes no difference.

    Any ideas as to how I can reduce or get rid of this interference ? Driving me mad! It doesn't increase with volume by the way so gets drowned out with loud music







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    Re: Interference on BMW e46 Harman Kardon

    You have a bad ground somewhere in your system.



    Refs:
    sefugi x2, S.DeYoung, SteveMead, chillin, rebelfromva, Got160s?, JL Audio , mclerico83, and BIGJEFF64.



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    maylar's Avatar
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    Re: Interference on BMW e46 Harman Kardon

    If the noise is present even with head unit off, that suggests an issue with the factory amp. Probably time to see a dealer.



    dave
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    1999 Buick Park Ave Ultra
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    Re: Interference on BMW e46 Harman Kardon

    Well I would have agreed it was the amp, if it didn't stop when the ignition was turned off?

    I t a case of cleaning up the earths?




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    maylar's Avatar
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    Re: Interference on BMW e46 Harman Kardon

    Possibly a bad earth connection, yes. Is the noise constant, or does it come and go? I'm wondering if the amp is picking up static from the fuel pump or something like that. It would stop with ignition off.

    Might be wothwhile to query the BMW forums too.



    dave
    ----------
    1999 Buick Park Ave Ultra
    Head Unit: JVC KWHDR720
    EQ: Audiocontrol EQL
    Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
    Sub Stage: Boston G3 10", 0.5 cu ft sealed
    Amp: PPI Phantom 900.4
    Rear Fill: Boston SE953 6X9's

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