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Old 03-12-2010, 07:51 AM  
TisMe
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Join Date: Aug 2008
Posts: 1,719
Almost sounds like the speaker is picking up some interference. You didn't mention if the noise happens without the AC running.

Try to isolate it, blower on high or low with AC on, high and low with heat on, vehicle moving or not.

Last edited by TisMe; 03-12-2010 at 07:53 AM..
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