Just purchased a 2016 journey and it has the factory installed DVDs player and when u go to the DVD screen menu on the front seat screen it's says disc 1 and disc 2 in the top corners but can't find anywhere that says it's a 2 disc system or not. Don't really want to try and stick 2 disc in and wreck it, with one disc in u can click back and forth between disc 1 and 2 button and it doesn't do anything. Anyone know ?