judgey wrote:What would i need to use on my kenwood dnx-7240bt
you need mapsource app to transfer country maps you want to device....
http://www8.garmin.com/software/MapSource_6163.exe
use WinRAR to decompress MapSource_6163.exe and run MSmain.msi file to install MapSource...
and you can delete old map file gmapprom.img to release space on device if needed...