Yes, nav is built in to this unit. Comes with both map discs, gps antenna, etc. Everything that originally came with it is included. The BT module DID NOT originally come with this unit. It has sold anyway.
There was a guy that wanted the BT before you ever even came into the picture. He has since came through on it and I figured you wanted the D3 since you originally said you didn't want the BT anyway.