Price: $469.95 - $999.99
I looked at several different models before settling on this one. I have the DDX6019 head unit, along with a Garmin navigation unit that plugs into it. The navigation is great, and it is quick, since it doesn't have to read off of a DVD. Maps are stored in the unit's memory and can be upgraded via an SD card slot. This way, your backseat passengers can watch a DVD (a second screen needs to be purchased) while you are navigating.
The head unit has plug-ins for a second source (mp3 player, video player, game unit), the nav unit, CD changer or HDD unit, TV input and a back-up camera. It has an input for Sirius radio, but the navigation unit is XM radio compliant. I use the XM radio and subscribe to the traffic info, so the nav unit has real time traffic.
The controls are a little confusing at first, but you get used to it. Actually, using the supplied remote control is the easiest way to switch between screens and functions.
If you want entertainment, navigation and great sound, get this unit.