car that allows game system hookup? Would prefer a portable DVD system with dual screens, and would like to have it with a battery. I saw a perfect one by Venturer, an 8.4" dual screen system, but can't find it at any store online or otherwise. I tried to email Venturer, and message failed. I am at a loss for what other system might work. We want to take on a long road trip and let the kids hook up their game system for the hours on the road.