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Hi, I'm driving a 04 honda accord euro, and I've replaced the old standard speakers with a new one, sorry that I forgot the brand of the it. Recently I heard some high-pitch noise coming out of the speaker once start off the engine, and the noise pitch goes higher as everytime I accelerate, this problem has never occur before, what should I do to fix it? Thank you for your assistance!! zach

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  • davemonkee Oct 05, 2010

    do you have an amplifier in the car?



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Sounds like alternator whine, can be a hard thing to fix or something really simply. here are some things to try: check your ground at the battery first, make sure it's a good connection on the battery and the bolt it's grounded to on the car, make sure the battery connections are clean, positive and negative. make sure you have a "good" ground on your amp/amps and radio. you can also try grounding the radio and amp at the same location to avoid "ground loops" don't run a long ground from amp, but run a wire from the radio to the amp ground. hope it helps. dave

Posted on Oct 05, 2010


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