Answer to both questions on this thread:

Why am i doing this?

Sheer convinience: You would have a centralized system for all the functionality you want from your PC, as opposed to multiple gadgets for each function.

A single PC can provide music file playback, DVD playback, satelite radio, GPS navigation, diagnostic information from the vehicle (usuall OBD-II), internet access and hands-free cellphone operation. In order to achieve all that with individual products, you'd need a high-end audio/video system, a GPS system, a satellite radio receiver, a scan tool for diagnostics, and a device capable of internet access such as a PDA or a laptop. The PC will usually be cheaper than all the gadgetry involved for all that functionality, not to mention you'll have central control of all the functions, ideally through a safe driver-friendly interface.


Milind