Can anyone help me with the aux input on a Fiat Stilo abarth's Sat Nav? the user guide says that it can accept video inputs. So I decided to buy a 12v DVD player and go down to my Fiat dealer so the could remove the sat nav, and I was hoping that it would have composite inputs or something in the back, but there was nothing........how do I connect it?? the fiat garage didn't have a clue.