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hi!

maybe someone has had similar problem and solution. my 166 is equipped with full ICS audio system- amplifier, subs, changer etc.

and lately I have noticed phon noise that increases and decreases together with engine rpm. kind of "zzzoooooooooooooom". to be worse it is intermittent, sometimes very loud, sometimes nothing at all. have been to audio specialists, but they are not very interested in checking all that original system :( maybe there are some typical places to look at or to start with?
 

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i've been getting this recently....i reckon it's a loose connection at the amp end in the boot - only seems to affect the passenger side though.
 

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I have a similar noise but it only happens when playing CD's and not all the time. Must be something to do with the CD changer as when I switch to radio it disapears. I cleaned the laser with one of those cleanning discs and it made no difference. Did help with the disc skipping though...
 
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