Have you figured this out yet? You can install an overhead system, in-seat system and center console system that ties in with the factory audio. Dealerships will do these. Costly. However, I ordered my own console system from China direct, arrived at my front door in 4 days by FedEx and paid only $150. versus over $1000 elsewhere.
It will play wirelessly thru your FM or you can hard wire it to your factory audio. I didn't want to mess with attempting that on my own so I chose the Ipod video route. The unit comes with Ipod connection cable as well so all I do is have it connected to my Ipod Video where I have tons of movies and TV shows for the kids in back and I choose to play the audio through a casette sound cable connected to the Ipod. This system works beautifully and I am able to play movies and TV shows without the need to carry around a bunch of DVD's. In case you don't have an Ipod video then you can hook up a DVD player directly to the console unit.
