I'm sure this has got to have been covered somewhere on these threads but I cant find it?

Have just taken delivery of a 2013 Abarth 500 and interested to know how I can get google maps working with Blue and Me.

The car will be mainly used by the misses and can connect her iPhone 5 for phone and via the USB port for her music. I have seen that google maps seem to work through the radio. I have tried with the radio and google maps, nothing nor with the USB connection. Am I missing something or is there a clever trick that makes this work?