Installing maps on your garmin gps
When you buy City Navigator, you must install the software and unlock the maps so that they are functional and you can transfer them with mapsource on your gps
You must thereafter accept the license agreement for using the City Navigator NT software from Garmin. Check the boxes "I Accept the Data License Agreement" and " I accept the Software License Agreement".
Choose the directory you want to install and click Install. Wait some minutes.
The maps must be unlocked in order to be displayed in MapSource. In fact, when you buy maps you get a product key that allows you to obtain an unlock code. Each product key can be used to obtain only one unlock code and each unlock code can be used to transfer map to only one gps. The unlock code is based on your garmin Unit ID, the regions you buy (Europe, North America) and on the map version (City Navigator v8, City navigator 2010). To know, your unit ID,Go to Settings, System and About.
Run the mapsource unlockWizard
UnlockWizard wizard allows you to unlock your maps. You can also unlock via the web.
You'll need the internet to unlock the maps
Choose: I'm a new garmin unlock customer
Enter your personal information
Choose manually enter external serial number (See the about dialog on your gps) if you already know your unit ID
Choose the device you need the Unit ID.
Enter your unlock code code and Click Next to get the unlock code
After your maps are unlocked, choose the map tool to select regions you need to transfer
Choose Send to Device when you're done selecting the region.
Choose the device( on my computer i can see Garmin Mobile PC (for portable computers), the amovible drive G: (SDHC 4 gigs memory card) and my nuvi 260 internal memory) .Click Send to start the transfer.
Wait some minutes (or hours)