Installation guide
1)extract all files to grmamnt.txt
2)rename grmamnt.txt to grmamnt.zip and extract again
3)Burn all files to DVD if you like to or Navigate to Windows\CNNANT2009Update_ENU.msi
Wait for installer to finish.(you must run it from there otherwise will ask for previous version to overwrite it)
4)Create yourself a key for Mapsource using the Map ID: 325
Load new maps to your GPS.


how do i extract RAR files into a txt format as mentioned in step 1 of installation. please explain i'm new at this. thanks for ur patience.