You only need one Full Europe Map in your Nuvi
Delete all other detailed maps of Europe in your Nuvi and and SD card, make a folder called /Map on your SD Card (do not delete gmapbmap.img this is the basemap)
(do not delete gmaptz.img this is the timezone map)
Copy the full Europe Map to this folder. Name it anything you like .img e.g. CN_EU_2014_20.img or gmapsupp.img or even fabioxp79.img
Now you will have all countries of Europe including Italy and Romania
Having duplicate detailed maps of the same coverage can cause problems in routing search etc.