On my LG Incite CT810, I have Garmin XT 5.00.20w installed and working successfully with worldwide basemap. I want to install CNNT NA 2011.31 as detailed mapset, I have this downloaded and extracted to a folder on my desktop. Using JM-KG-v1.5+5digit+checsum with map ID 2283 to create unlock code. Open Mapsource 6.16.3.0\utilities\manage map products\unlock regions\add. I copy and paste 25 digit unlock code directly from keygen window. Map manager window says map product not installed. I have read and re-read numerous posts/threads/tutorials and can't seem to understand where I am going wrong. Assistance is greatly appreciated.