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HELP! Radio causing subtle whining noise?

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Old Feb 17, 2008 | 06:38 PM
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Carson07S2K's Avatar
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Default HELP! Radio causing subtle whining noise?
If the radio is on while I am driving, a subtle whining noise is present and increases in pitch as I accelerate. If I turn off the power to the radio, the noise disappears.

What could this be?
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Old Feb 17, 2008 | 06:40 PM
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Sounds like your audio system is picking up interfearance from your engine. Possibly your alternator.
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Old Feb 17, 2008 | 06:55 PM
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do you have an amp? check your grounds. could be a ground loop, picking up alternator whine.
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Old Feb 18, 2008 | 01:21 AM
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Originally Posted by HankookS2K,Feb 17 2008, 10:55 PM
do you have an amp? check your grounds. could be a ground loop, picking up alternator whine.
Yeah, chances are it's a bad ground.


Alternator whine is often caused by a bad ground. Make sure your grounding point(s) for your amp(s) are less than 4ohms to your battery's neg terminal.
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Old Feb 18, 2008 | 04:39 AM
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I have no amps at all.
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Old Feb 19, 2008 | 09:27 AM
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are you using an ipod? my ipod transmitter does this.
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Old Feb 19, 2008 | 10:44 AM
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nope. bone stock in the electronics dept.
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Old Feb 19, 2008 | 11:05 AM
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Normally I would say a bad headunit ground- this case IDK
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Old Feb 19, 2008 | 01:02 PM
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Well, it is my dealer's problem when I take it in. This noise wasn't present before I picked it up last week.
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