I'm a total newbie -- I just got my 1st GPS handheld. It's a GPSMAP 64st. I was about to watch your tutorial about installing maps and I see the warning:
Warning: If you bought a micro-SD card that contains maps from Garmin DO NOT overwrite this card, use another card.
I did not add anything extra to the GPSMAP 64st, but I know it has a basemap and topos that come preloaded.
If I follow the instructions in the tutorial will I overwrite any maps that came with this device? I suspect the answer is "no" but want to make sure I don't start out by screwing up my device.
Thanks for tolerating a very Newbie question!