i bought a aftermarket nav system for my 09 jeep, it is a touch screen. i installed it in few days ago and it works like a beauty! enjoying every time i use my car now!
After market GPSs are now supposedly much better and much cheaper that those that come standard. I'm looking for one myself. Personally, I like to know where I'm going rather than have someone tell me where to go but I desperately need something to warn me of the speed cameras.