You would need City Navigator® North America NT Part Number: 010-11546-00 Suggested Retail Price: $ 99.99 USD, but for 100 bucks.... its a waste on that unit, given what new cheap and better ones are going for.
Map updates in general are a waste. I spent the 100 bucks at year 1, because my wife is in real estate, and the new subdividions werent on her 660. Here unit was $1000, and low priced ones were still in the $400-500 range. After the update a few of the many new roads were added, but non of the out of business POI's were removed, and by the looks of some of them, they went OB a few years before we got the gps in the first place.
As for dash mount, wait till you get yours. All three of mine have come with a smooth disc that sticks to the dash with 2 sided type tape, and then you just stick your window mount on there. Unless that was removed recently as another cost cutting measure. (based on the description I read, they both come with the dashboard disc)
Have you looked at costco? $199 for the 1450 and $129 for the 1350 They appear to be the non T versions..but price is good, and if you dont care about the traffic service.
Andrew
I brought in my C330 to update the map and it originally had NOrth America on it. All that Icould get is the eastern US.. wow. Anyway.. I am looking at either the 1350T or the 1450
I don't care for the window mount so another 20 for the dash. and of course a case