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Discussion Starter #1
My audio system was picking up noise after installing the auxiliary input. The noise was only present while I was charging my MP3 player. I have a fix for the problem now if any one is interested.
 

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Coupe/Convertible Forums Moderator
CURRENT: 2011 SL550, 2011 C300 FORMER: ML350, CLK550 Cabriolet, C240, ML320, 300TD
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You need what is called a "ground loop isolator". This is a sommon automotive audio problem.
 

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Discussion Starter #3
Rodney, thanks for the reply. I ended up making a filter to attenuate the noise. I placed the filter behind the 12V cigarette lighter port. It worked out great.
 
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