Has anyone successfully added a separate car dvd player to the aux inputs on the f700bt? What about an xbox 360?

If you're talking about the normal inputs. Sure. I had a 6 disc pioneer DVD player hooked up. Works like a champ. Just removed it. I actually need to sell it.

the video inputs are universal, you can hook up any A/V equipment you want to as long as it has standard composite video RCA connectors. however there is only one set other than the 1/8 plug on the front of the unit, and most people use the only input on the back for an IPod.