I had one for about a week, so I can't answer much. You do all updates via the SD slot behind the screen. You get the updates from garmin.com/kenwood. I think they are basically the same as other map upgrades. Stick them on the SD card and load the maps to the unit. From what I was told and understand, you can only update POI's on the unit.
My wife has a nuvi 660 and compared to the Kenwood hers is far better. You are very limited in what you can add or change and Garmin told me that is just because the specifications from kenwood which makes those limitations. So while yes, the n
