I don’t want to make maps! I want to use them!!! I tried to export a map of my hiking area to my Garmin etrex20x. I cannot find the file on the etrex. How do I use this system? Is it compatible with the etrex20x? How do I know what I am exporting? I open the exported file on my computer and just get a bunch of weird lines of numbers and symbols.
Did you start reading around here:
http://forum.openstreetmap.org/viewforum.php?id=26
And the FAQ?
http://forum.openstreetmap.org/viewtopic.php?id=15431
http://www.dcrainmaker.com/2013/05/download-garmin-705800810.html might be also useful as a one-step-at-a-time guide.