I have a DNX 7220 and I have downloaded all the CN 2012.20 files (Both UNL and MAPSOURCE (to include the 5 part and 6 part files)) to update my Kenwood. I also have an 8gb SD card that I used to update all the software as described here on the forum and on the Garmin Site. DO I just add all the files onto the SD card and insert? Will it automatically know to look for the newer files? When I hooked up the USB port on the center back of the unit I was able to locate the gmapsupp.img file in the memory, but not the new map file here on the forum to replace the old file, is that an issue? I am planning to create a garming folder on the sd card and insert all the ne files and see if they are recognized. I am thinking it cannot be that simple...I hope I am wrong. Is there a way to combine all the files into one .img file?
Your assistance is greatly appreciated!