My BMW Streetpilot 2820 is now running CN AU 2014.2, but my Zumo 660 can only see updates to 2013.4. Shouldný both be the same, latest version? Both have lifetime map updates. I use MapSource for trip planning, so it's important to have the same maps on everything. Does anyone know what the latest CN AU update number should be? Can't get any useful help from Garmin Support so far as they don't seem to understand my question, or don't want to.