Hi all! I have a Garmin Nuvi 1390T with Europe base map 2012.10 on internal System memory, there I also copied Romania map and it works. In a 8gb microsd card I put Europe NT 2014.20 map named as gmapsupp.img. I would like to add others maps on the SD card but I didn't managed to do correctly for example naming them as gmapprom etc.. or creating a Map folder in the root directory of the sd (i have no sufficient space on internal memory because if I cancel preinstalled map then nothing works). What I must do to have one more map working on the sd along with the Europe one? (I will put Italy 2014.20, and all maps are unlocked). Thank you.