Just upgraded, so this is for sale. It comes complete with all cables and instructions. It works very nicely, as a radio/CD or ipod player via aux or you can sit on the back set of an evening and using the remote control can open the motorized screen and control all functions to watch a DVD. I've had it for a couple of years and there is nothing wrong with it. It comes in its original packaging and I'll post at cost, it weighs 3.5 kg and measures 18X10X5& a half inches. I'd recommend that you use the DVD with a hook up as it does sap your battery a bit. £70 Its in Castle Donington.
Auxiliary box? It's just the one unit that fits into the standard hole in the dashboard, the screen is motorized & winds itself out & up. I'll get postage costs today.