Thread: Why does newly installed (vintage) radio hum???
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Rob G Rob G is offline
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Join Date: Dec 2008
Posts: 179
Are the noise suppressors only on the earlier cars? I have a 89 911 that has a humming sound even with everything off and the radio on. As i rev the motor the noise increases.

Rob G
Old 08-23-2009, 07:56 PM
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