The only thing I tried is what I do to see them in MapSource but changing the output to Basecamp in the GSAK. The symbols are l use are located in C:\Users\Owner\Documents\My Garmin\Custom Waypoint Symbols\Garmin60SCxSymbolGenMacro.gsk
Thanks for the link. That is where I have the icons: C:\Users\Owner\Documents\My Garmin\Custom Waypoint Symbols\Garmin60SCxSymbolGenMacro.gsk but only treasure chests show up in Basecamp.
When I opened Basecamp, I was unable to find the custom list so I have no idea how to make the icons appear. I went through all the drop down items twice. I checked help. I missed it...... someplace?
If I am reading the referenced document right, custom icons cannot be loaded on a gps device from Basecamp?