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2002 M5 radio appears to be possessed


I own a 2002 M5.
The following has been going on for approximately a month.
The volume of the radio/cd will abruptly spike/rise for around 5 seconds before returning to normal. During the spike, the radio appears to be possessed, and passengers are left wondering who turned up the volume.
Has this occurred to anybody else?
Is it possible that I have faulty wiring?
Is it possible that the radio or a subassembly has to be replaced?
The issue is that I can't duplicate the spike since it appears and disappears at random. It may occur only once throughout a driving day, which is commonly on weekends.

Topic starter Posted : 08/12/2022 2:36 pm
Serge - UpFix Team
Famed Member Moderator

Thank you for reaching out. We do repair Displays Here is the link

Posted : 08/12/2022 2:37 pm