Upon recent acquisition of a Garmin nüvi 270 I found that I had the ability to manually enter in longitude and latitude coordinates for locations. This is a very convenient feature because you can enter in coordinates directly without having to connect the GPS to the computer at all.
For those that would ask “Why can’t I just enter in a street address instead?” You could do that, but this is useful when you’re browsing the map in Google Earth and don’t know what the street address is (but do know the coordinates).
See video below for details.
Manually Entering Coordinates With Google Earth And GPS, I have been entering coordinates into my 2008 Prius from Google Earth. Sometimes an address is not listed in the database for the GPS. It will always take you to the coordinates though. Most accurate way to find a location but you do have to preplan and enter the correct numbers!