E46Fanatics - View Single Post - Buzzing from OEM sound system
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Old 04-14-2019, 08:23 AM   #2
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Join Date: Jul 2008
Location: USA
Posts: 9,566
My Ride: 2018 M240i
Is the audio system stock? That is, have you changed any parts of the audio system? Iíd inspect the area where the amp is located. Thatís behind the left side vertical cover in the trunk. Make sure the 2 connectors on the amp are tight. In the end the amp may be the cause.
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