I've had this for a few years now, and I don't think I will use it. It worked when I tested it on a fused 12v battery circuit, and it comes with everything you need to get it going.
These are high quality in dash units that are often installed in factory vehicles.
This unit comes with a new 2011 GPS map DVD (needed to operate the gps function), new cable kit, and the harnesses that came with it when I bought it. The only thing I don't have with it is the DVD over ride (watch movies while the car is in motion) and a remote (if there is one?)
Make me an offer. Not very interested in trades at this time.