You can register your device through the Rand McNally Dock, a free software for your home computer. Click here to download. The Dock will prompt you to connect your device, using the USB cable provided, and enter your registration information.
For a step-by-step tutorial, please click here.
*Please note: If you purchased your device second hand (from another individual, through ebay, craigslist, or another third party), you will need to contact Technical Support to register your device.