Join Date: Jun 2004
Location: Orange, California, USA
Updating maps is easy, it's a phone call to your friendly Garmin tech support, say what model of GPS you have (Navigator I, II or III) and they will send you a CD with latest maps. When you install it - you will have to pay $75 for activation.
The whole process is quite simple and if for any reason you get stuck on something - a phone call to your friendly Garmin tech support will resolve it.
As to 2610 model, I'm not sure if the process is the same - it may even be easier, you may be able to download it from the Internet. If you however have the original Navigator mount with buttons, these buttons will not work. They are enabled specifically for BMW Navigator models.
2015 R Nine T
2007 LT Storm Grey
2005 LT Gold (traded in for '07)
2007 G 650 Xchallenge