Don't pay extra for it, as it is not worth it (not even close).
>
>Navigation (GPS) is a huge hit on the sticker but only an anemic delivery of
>value/performance. Tell the salesperson at the dealership that a $100/$200
>unit works better and can be updated for a hell of a lot less.
>
>Shop for dealerships that offer basic models.
I wouldn't buy a basic GPS (ie standalone) from a car dealership. Buy it from a retailer - newegg, tigerdirect, amazon, etc. You'll pay MUCH less.