Ok so I would like to use my phone for a gps when I go out snowmobiling. I cannot find the type of information I am looking for. All I can find is city maps and such. Is there waypoint and "follow me" type software availible for these adapters/phones? I just want to make sure I get home alright. I would prefer using one of the adapters that plugin to SD slot because I already use it for music bluetooth headphones while I am out and about. Thanks for the help!

-Jared