I looked high and low for an X5 w/Nav, DSP, and sport pkg. and they are not easy to find, especially if you want any color other than black. Finally found a CPO '04 4.4 with it. If you install it, you'll be one of the approx. 10% of X5 owners with it. Although the system is not as advanced or simple to use as say, the Lexus system, it still gets the job done decently. They really should integrate the directional arrows into the instrument cluster like on my E65 Nav. though...anyone from the factory reading this? For the extra price, it is a great feature to have and I use it all the time. If you add the voice recog. module, it gets even better because you can ask the computer to show you various POI on the map by voice input only. For the money, it looks like it's about the same as an aftermarket portable system, but I like the idea of the factory look and integration of an OEM unit. Good luck with your project!