Thanx Ellinas for Anavasi great maps I didn't know of!
As for Auto drive the procedure I did is get the gmapprom.img with universal extractor, then rename it to gmapsupp.img
Then with Protected Garmin file toolkit_2254_x64 get the FID of the map.
With garmin unlock generator I put my unit id , selecet map product <costum mapset> , and then generate to get the code.
I created a notepad file with the first line cointaining the key and save it as gmapsupp.unl all files not.txt.
that's it.
Put it in a Garmin folder in the sd but the device says maps are corrupt and cannot be used !
Any insight?