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Old 08-20-2011, 11:18 AM   #3
NoBozo
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BTW: I strongly suspect that your GPS/NAV system has backup capability to allow changing battery's just like my 10 year old handheld Magellan GPS. There is a time limit on my Magellan..say an hour or so, that maintains the memory while you change battery's.

Check your car owners manual. NB
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