Question about 1998 BMW M3

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Buzzing noise from radio

I have a 1998 M3 Evo, when I turn on the ignition and the radio has been left in the "on" position I hear a "buzzing" sound could this be a relay within the radio or behind it? If I turn thr radio off when I turn the engine of the noise does not occur. Any Ideas?

Neil

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The sound is the generater's ac power and the rectifier that filters the ac to dc in the radio is starting to fail or a filter inside the radio is failing to filter out the ac power

Posted on Oct 18, 2008

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