I just found out that I need the system interlink and am trying to get it over nighted. This will enable all waypoints and tracks to be stored in the interlink so that both units will have that same info in them. If i am driving behind the helm and want to create a waypoint or find one I can view it on the helm unit and then go to the bow mounted unit when I get closer and it will be there too. I will report back after installation and use.
Rich