@ioanni
Your 200W cannot use either ASR [Automatic Speech Recognition] or JCV [JunCtionView] files. If you have a PC Install [gmap folder] use MapInstall to load the image to your device. If you've downloaded a compiled *.img file simply copy it to your nuvi's Garmin folder named gmapprom.img or gmapsupp.img [unlock first if it's locked]. Please post in the NT 2015.20 thread if you should need further help, it's OT here. Check the Tutorials Index for tips and help before posting though.