Where's the GPS antenna? Also, anyone know how to modify the Nav system so you can program it while the car's moving. I know it's a safety issue but the unit in my Acura allows it and I have a Kenwood unit in my Tahoe that let's you change on the fly. Thanks.

 

Also, I have a question.....
Is it possible to play a DVD on it...Or to get a player and replace the stock one and will it work????