Quote Originally Posted by mtinaudio View Post
I downloaded City Navigator south america 2018.1 (gmapsupp.img) and I needed to view it in Mapsource.
Unfortunately MDR missing from a simple preview map made that way won't have proper search functions as already said. If you can get by using BaseCamp instead of MapSource then simply put the gmapsupp.img on an SD card in a Garmin folder or attach a device with the map loaded. BaseCamp can even see locked map image files but regardless the MS flag must be set to '0' not '1'. [Only registered and activated users can see links. ].