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  1. #1
    thatguy's Avatar
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    Noisy Whinning Sound

    Installed an Alpine 7987 Deck into a freinds car. 99 hONDA ACCORD. everything works fine. but when he turn on his headlights, he get a whinning sound. any ideas where i should start trouble shooting?? it previously had a rocksford deck in there and had no problems wat so ever. hooked up his harness to the alpine and he is gettin the whinng noise.

    Note. It only happens when the headlights goes on. I try disconnectin the illumination cable but still same problem.

    thanx for readin

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    dkguitarist's Avatar
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    Re: Noisy Whinning Sound

    maybe your hu is ground to your lightS?

    2003 Chevy Cavalier
    HU:880PRS - SUB AMP: IA 20.1 - SUB: 13w7 (15" 05 XXX awaiting new box)

    FOR SALE: USHER 9950 TWEETERS, USAMPS HCA-25 2 CHANNEL, XXX XBL^2 6.5" MIDS, Kicker KX300.2 amp

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    Re: Noisy Whinning Sound

    Is the whinning real loud and annoying. And it just keeps going on and on and on ??? Thats easy, it's my EX-WIFE!

    OK seariously now, it might have something to do with the dimmer wire on your wiring harness. If you have the dimmer wired up you may disconnect it, that may be you problem. Good luck. Later.....

    2000 Nissan Xterra
    H/U- Pioneer DEH-8600mp
    Pioneer GEX-920XM SDR
    Subs- 2-12" Kicker EL' Sevens
    Sub Amp- Sundown SAZ-1500d
    Sub Enclosure- vented 2.75 cubes per sub
    Amp- SoundStream Reference 604
    Comps- Focals Polyglass 165v

  4. #4
    maylar's Avatar
    maylar is online now Electrical Weenie

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    Re: Noisy Whinning Sound

    Try regrounding the HU to a different spot. If it's grounded thru the car's harness it could be getting a ground loop. The current drawn by the headlights causes a voltage difference in the ground system.

    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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