buzzing noise when pluged into car charger - charger or ipod at fault?

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Level 1

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buzzing noise when pluged into car charger - charger or ipod at fault?

I purchased the USB power charger PowerJolt and the Auxiliary Audio Cable (3.5mm stereo-mini connector cable) on Saturday.

When I try to use the car charger in conjunction with my cars AUX in port using the Griffin Auxiliary 3.5mm stereo-mini connector cable, I get a very noticeable and unplesant buzzing noise as soon as I plug in the car charger. If I unplug the charger and just leave the mini cable plugged in the buzzing goes away and everything is clear.

Is the charger I purchased defective?

Is there something wrong with the ipod?

Is there anything I can do to help with the noise?

Posted on Oct 9, 2008 9:19 AM

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Answer 1

Chris CA

Level 10

82,759 points

Oct 9, 2008 10:39 AM in response to bkbooth

You have a ground loop problem which induces noise into the amp in the car.
Most likely the radio or cigarette lighter is not grounded properly.

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Answer 2

Oct 15, 2008 9:52 AM in response to bkbooth

Probably a ground loop (but there are other possibilities). The standard solution is an isolator. This one is frequently recommended:

[Crutchfield|http://www.crutchfield.com/S-Zhrm4XsDKwR/App/Product/Item/Main.aspx ?search=ground+loop&i=127SNI135]

and this one you can get in your neigborhood:

[Radio Shack|http://www.radioshack.com/sm-buy-the-ground-loop-isolator-on-http-wwwradi oshackcom--pi-2062214.html]

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