In my previous post, i figured out how to put nav into my seville. But after searching around a bit, i was thinking about putting the 2003 DVD nav into my car. THe question is: Is the nav built right into the radio? Because on my GM data discs, there is a seperate nav data box, display, and radio for the 01 sevilles. For the 03 sevilles, there is only a radio/display listed. nothing else, except for the antenna. I know Chrysler recently came out with a nav radio that you simply plug in the dash and connect an antenna and your done, is this possible how the 03 sevilles are? One other thing, when i looked at the connector for the radio on the 03's it looked like it had all the nav connections, including the antenna. Maybe if this works, i will do this unit, seems much easier than the other setup.