Thank you for the quick reply. It says to use 945.6174 or 945.6175, but there isn't either of those versions for a USA, Canada and Mexico maps. I see one for USA and Canada but it is 1.95GB, which is bigger than the space I have. I also see one for just the USA for a 2GB device which is 1.7GB but then we lose Canada and mexico. She lives driving distance from Canada and does go and my brother lives near Mexico and she goes to visit.

Not sure what I should be doing here.