I recently bought a 2002 M3 with the navigation system. But its
performance has been far poorer than expected.
On any cloudy day and many sunny ones, the GPS has no idea where I am.
I always get a lat/long reading, but the nav's map places me miles
from where I am and often shows me offroad.
Is this normal? Or should the GPS work on both sunny and cloudy days,
and even rainy ones too?
BTW, I definitely have the correct CD installed (Pennsylvania), but no
prior experience with GPSes.