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Reload Thread: can't fix ground loop noise! tried everything....

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    can't fix ground loop noise! tried everything....

    Ok here is the situation:

    I have alternator whine, and usually a bad ground is the cause.
    tried regrounding several times (sanding off paint and getting a nice ground on my amps) but it has not worked.
    from the back of the receiver, i tried this:

    headunit connected to two amps (biamplied 4 channel, and sub amp)- noise
    all rca cables disconnected from headunit - no noise
    ipod, 1/8 jack to rcas near headunit to amp = no noise

    tried regrounding headunit= noise


    the headunit is a pioneer premier 880prs... could this be an issue from internal headunit grounding?







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    Re: can't fix ground loop noise! tried everything....

    have you tried grounding your rca's?



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    Re: can't fix ground loop noise! tried everything....

    ground the RCA wires.




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    Re: can't fix ground loop noise! tried everything....





    2007 Red Ford Focus ZX4 SE
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    - MB Quart RSD216 - 2 MB Quart RWE-354 in 4 cubic feet sealed -
    - MB Quart DSC4125 - Audiopipe AP1500.1D - Optima Blue Top -

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    Re: can't fix ground loop noise! tried everything....

    Quote Originally Posted by igo4bmx View Post
    the headunit is a pioneer premier 880prs... could this be an issue from internal headunit grounding?
    definately, i messed mine up when i wired it wrong = alt whine.

    got it repaired ($145 ) = no whine + sweet *** hu.



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    Alright then,

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    Re: can't fix ground loop noise! tried everything....

    Quote Originally Posted by jmanpc View Post
    ground the RCA wires.

    my rca's are not part of the headunit like in this picture, since they used a harness to distribute the rca's...
    should i solder a wire to each rca?




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    Re: can't fix ground loop noise! tried everything....

    just run a wire out to the rcas and wrap it around the rca's. look on the next page or two to see pics of it done.




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    Re: can't fix ground loop noise! tried everything....

    Quote Originally Posted by jmanpc View Post
    just run a wire out to the rcas and wrap it around the rca's. look on the next page or two to see pics of it done.



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