In reply to:

But last week I had to send in my unit for repairs (it didn't remember time/date)



Did you have any other symptoms with this? I'm finding that mine dosn't remember the time/date either (we're back to July 1st, 2001 again!) as well as the lockup with switching to Aux, and Remote dropouts..
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Mike 'Fox' Morrey 128BPM@124MPH. Love it! 2002 BRG Mini Cooper