Thanks Wolf!
I'm still a bit confused - some people say MK III could be the root of the problem with sound whereas others say MK is a GPS thing only. I wonder if there is a simple diagram that shows how things are connected GPS-CD changer-speakers?
MKIV costs more on ebay then III, just want to make sure I'm not throwing money away
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Originally Posted by WolfX5
A bad MKIII unit can definitely display the symptoms with the audio system that you've described. I know this because my own MKIII unit also does this periodically. Downgrading (O/S v22.1 or lower) then upgrading the firmware has helped but periodically I still get the same issue.
If that doesn't fix it and you have to get a new nav unit, by ALL MEANS get the MKIV instead of the crappy MKIII. They are plug-and-play compatible and you will have far better reliability (not to mention cool features!).
Good luck!
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