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I wonder if any of our members can help. I have just purchased CNSA 2015.20 and it downloaded and installed directly onto my NUVI. (Did not give an option to install on PC) No unlock code was provided and I need to use the maps on either Mapsource or Base Camp. I sent Garmin an e-mail for the unlock...

I have read that on the newer Nuvi's, one can copy the JCV file from any of the various Garmin maps into the .System/JCV directory and they will be picked up automatically by the map you are using, as they identify the positions via lat/long position.

I have just purchased the new Garmin Nuvi 2757LM by importing directly. It came loaded with the North Americas Lifetime Maps, but I deleted them and replaced them with the latest Garmap Sub-Sahara series. It has a large 7" screen, which I find fantastic with my fading eye sight. The Unit is ver...