I just purchase a used car it came with a mz1010 rosen http://www.trailduty.com/docs/Rosen/Mazda3.pdf, the car was purchase in a dealer and it keeps saying is missing file nngnavi.exe... also missing the sd car would like to find out what can i do, need some help since don't know where to go or what to do...
thanks
been told my radio is discount it and cant find parts for it..........

You can download any iGo 8, iGo Primo or any other Windows-CE based GPS application from this site, along with maps and other required files and put them on a 8Gb or less SD card and your GPS should work fine (assuming there isn't a hardware problem). I've owned a few different GM-specific Rosen 1010 head-units and the nice thing is that ALL GPS-related files are stored on the external SD card, so it's very easy to get any Windows-CE based GPS app to work.

I'd recommend iGo 8 or iGo Primo as the GPS app.