I was at a VOLVO dealership this past weekend and inquired about the DVD based Navigation System. They did not have any to show me but the salesman attempted to explain the numerious steps required using 3 buttons on the back of the steering wheel to operate the unit and enter a destination. I am primarily interested in getting this option for my wife's use. Based on his description of what is involved I do not think she would use it. I would like the opinion of those who have this option on how easy it is to use, and is it worth the additional $1895? Thanks.