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Audio system noise at 30 MPH

  #1  
Old 02-09-2017, 04:09 PM
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Exclamation Audio system noise at 30 MPH

My 2011 SRX4 just began a high pitch constant "whistle" noise when the vehicle travels right around 30MPH. It's all stations, including Satellite and CD player.
What could be the problem?
 
  #2  
Old 02-10-2017, 10:05 AM
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Any repairs prior? Does noise change with speed? If you use fader and balance can you isolate speaker? Alternator is a possibility, but I would have it looked at vs guessing
 
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