Hi, we have just changed our car from a focus to a 2012 S Max Titanium (love it btw). Anyways, we were lucky enough to get one with a fitted DVD player for the kids. We've worked out how to turn it on etc but have no sound. It comes up about wireless headphones but the car didn't come with them and the instruction booklet mentions them playing through the speakers but I can't work out how to do this. Does anyone here know how to feet the sound through the speakers? And if I can only use them with headphones can they be any type of wireless headphone or will they have to be Ford?