Multiple Maps

[Seldom]

If it takes a single gmapsupp.img you can add multiple maps to that file.

[Boyd]

There is a difference between multiple maps and multiple map files. Garmin map files are actually "containers" that can hold more than one map. Just use the tutorial here and note steps 7 and 8 if you want to install more than one map on an older device like the 530: http://www.gpsfiledepot.com/tutorials/how-to-load-maps-on-my-garmin-gps-unit/#pcbasecamp

[omegaman]

I have multiple maps in one file installed currently. I've never been able to get the transparent maps to work. Hence the question.
Thanks!

[Boyd]

There was an error in some of jbensman's transparent maps (such as MyTrails) that caused problems for some people before. I think he has fixed this now, but if you are using his maps then it might be related. IIRC, Mapsource worked correctly to install the map but Basecamp/MapInstall had issues.

If you are using Basecamp/MapInstall then try Mapsource and see if it makes a difference.

[omegaman]

Thanks! I'll try it again!