If you want to play with the map while you wait for the NT Version set Nuvi Voice Language,Text Language,Keyboard Language to English,Keyboard Layout to Qwerty and adress search etc etc should work.
I play with NTU Maps on Nuvi 1300 Vesion 6.20 and I get it to Work Reasonably well. (Just MAP No enhanced Features)
But of Course the NT Map is the correct Map for Your Nuvi (This is just to Play and do some Simulations etc etc)
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