How to get [b]Unit ID (Device ID) number on Garmin units :[/b]
F9r1ng1t9mw]http://www.youtube.com/watch?v=7vvYmo8OR2Y[/video]

Alternative way some devices (all device, use some similar way):
For the newer models (e.g. Nuvi)

• Turn on your Garmin GPS.
• Select Tools > Settings > System > About
• Write down the ten (10) digit Unit ID

For older models (e.g. GPSMAP 60)

• Under Main Menu select Setup
• Under Setup select System
• Select Menu button on GPS
• Select Software Version
• Write down the 10 digit Unit ID

Also include the Garmin GPS model.