1) attach USB your nuvi to your pc ,enable hidden folders in Windows
[Only registered and activated users can see links. ]
and delete them (backup old maps and .unl and .gma first on pc)
2)All compatibe maps you can see in Garmin product page under tag "Compatible maps" :
3) I think no, traffic should be included in Nulink! service as shown in product specs: tag "Specs" in the above linked pageCode:Please Login or Register to see the links
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