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      11-14-2012, 11:58 PM   #5
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Drives: BMW E46 330i
Join Date: Apr 2012
Location: Melbourne

Posts: 126
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Hard to say. I would start with reading faults on the car.
And I recall there is a way to read the GPS signal off the headunit. But you might need to find and shop to do these and get it diagnose.
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