I have a windows based carpc, indash touch screen etc, and a USB GPS reciever for the PC. i use roadrunner as my front end, but I wont be upset if i have to run the nav program by itself.
what i need is a nav system that has auto routing, shortest route, turn here etc, all the normal BS.
the problem is I live in New Zealand, so im reluctant to spent $100US or more on a program that comes with maps for the US, i think its safe to say i will NEVER be driving there so paying for those maps seems a bit of a waste.
I can get garmin compatible maps for NZ from here
http://mapcenter2.cgpsmapper.com/
but im having real trouble finding a PC based program that is worth using, and can take the maps that i can access.
suggestions, links anything helpfull would be great