Jazzaro
I saw your reply about installing Sygic. I'm still having problems. I uninstalled Sygic, then reinstalled it from the flash drive that also contains the Sygic files in the root directory, but when I try to run it I get a message that downloading from Google Play has failed, so it seems to be trying that rather than trying the flash drive. I must have something set wrong, but I have followed the settings instructions from CMDroid. I have successfully installed Google Maps, Spotify, the permissions app and ES file manager, so I know the theory in general.
I've also successfully installed Co-Pilot, so can manage without Sygic, but I hate being beaten! Waze also defeated me.
Jaggyjim