I still have the unit and they sell the same unit online for $300.00. I think the seller is just drop shipping the units. But now my steering wheel control functions do not work. I contacted the seller with my dissatisfaction and even though I had a warranty he had me ship the unit to him and pay him $90 to fix it.

apparently the circuit board was fried. smh.

It worked for two months and the problems started back up again. Honestly I would never buy from him again. I'm going to do my homework next time. Now the unit makes a whissing noise when it starts up like its trying to load a cd.

 

An update on this radio, and yes I know this thread is fairly old.

The nav was really never that great, but the DVD was nice and so was the Bluetooth function.
The iPod never really worked with it like it was supposed to either, but I always just blue toothed it is it was no big deal. It also had a hard time picking up radio stations.
Overall I would give it 2 out of 4 stars, but would still buy another.

Now for the cool part!
When I totaled my 2005 6.0 the insurance company gave me an extra $1500 because they thought I had some kind of factory premium entertainment and sound package because of the radio. It looked so much like a factory unit that they didn't know any better. So basically I paid $600 for it and got more than twice that from insurance.
That was the reason I got it in the beginning was that it looks like a stock part that came with the truck.