Hi have a friend ho has a GPSMAP 540s, mostly for water use, but would like to check is this unit compatible with our free map and contributor's map?
If it is, will invite my friend to join in. Maybe he can have 2 SD cards one for his Blue Chart and the other for Roadmaps.
TTFN
Arvin
If it is, will invite my friend to join in. Maybe he can have 2 SD cards one for his Blue Chart and the other for Roadmaps.
TTFN
Arvin