az1103 wrote:
It seems the built in navigation is all but useless!
What a monumental waste of money!

Pretty much. For our older ones, Garmin offers updates which are a year and a couple of versions out of date when supplied. Some of us have learned how to make our own maps from Garmins City Navigator North America disks, and have gotten at least up to within three months. This works up to and including 2010, but I personally know nothing about the 2012 and newer units. I have heard that even when the City Navigator disks come out, they are only up to date within two years, so for a year old map on your bike, it is probably from three years ago. The roads are surveyed, and then NavTec or NavTel or a company by similar name collates them and sells them to Garmin/Magellan/TomTom etc, and they publish them as updates. This all takes a while from start to finish, so truly up to date GPS mapping is not really possible. How long, however, does it take to build a new or rebuild an old highway.
As far as the nanny goes, there are mods that override the system so you can make changes or turn things on or off while moving, but only for 2010 and older. As I said above, I know nothing about 2012 or newer.