JVC is junction view (lane assistance)The lane assistant indicates the correct path in great detail if there are multiple lanes.
3D building and Lane Assistant files should be placed in the Garmin folder, which is in the unit (not on the memory card!). But do not forget, that they works only with the Garmin Nuvi 7x5 series and the Garmin zūmo 660 GPS navigators
Time file is :Auto time zone and automatically adjusts your time zone while navigating
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