The Mio Knight Rider GPS is coming soon to a store near you, as long as that retailer is a Radio Shack. The tech store and Mio struck an exclusive deal for the $279 navigation system, which features the original voice of KITT, William Daniels. We were able to try out the Knight Rider GPS when we had KITT in the Autoblog Garage, and it scored some extra novelty points while also working well as your standard, run of the mill nav system. Anyone who went for a ride in our KITT Shelby GT500KR tester was almost as interested in the talking nav system as the car itself. It's a little disappointing, however, that you can only get one at Radio Shack, though the sub-$300 price tag makes it all better.