About a month ago my nav unit was installed. It is the standard nav unit not the extended-navigation option. My local dealer was not able to provide me a DVD for the unit as they had some sort of supply issue from PCNA (and NavTeq, apparently).

On Tuesday I took my car in to have the window tint redone on the drivers door. I also mentioned checking on the status of the DVD to my service writer. When I picked up the car on Tuesday evening the service writer provided me with a shrink wrapped DVD and mentioned that there was much confusion with the nav unit, PCNA, and NavTeq.

When I got home I looked over the shrink wrapped DVD and notice that it is clearly marked as the DVD for (and only for) the Extended-Nav option. My question to those of you who know the nav system is, what are the differences between the nav and extended-nav DVDs and is it safe to put the Extended-Nav DVD in my standard nav system?

Thanks!