Simple .... I hardwired in a 300 watt Stinger Power Converter and custom mounted a Stinger "Game Plate" in the existing spot where his un-used rear audio controls were.
He was somewhat ok with just having the built in FM Mod for sound throughout the car, but I informed him of iSimple's latest products and he was IN. Now he has crystal clear iPod audio input, as well as a Mini Jack audio input and hardwired DVD audio.
After all the dust settled he can no Listen to songs from his iPod, Listen to the DVD player that is showing off his new Dual 8.5" screens, as well as plug in an Xbox and play video games on-the-go.
Pretty cool road trip upgrade...his kids are going to love it!