with an eTrex you have to put all maps inside one "gmapsupp.img"
You can do this using Mkgmap. Download and instructions here:
See the --gmapsupp optionCode:Please Login or Register to see the links
its also possible using Sendmap, download it here:
or GmapToolCode:Please Login or Register to see the links
Code:Please Login or Register to see the links
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