Panasonic never provided digital inputs in their SA and SC series with built in dvd players until recently- in the newer models they now provide a toslink ( optical ) interface. (This is not panasonic's fault, other manufacturers did not provide one either.) But any newer Panasonic home theater...
Yesterday I took my car for an oil change, once it was done I realized that they had'nt topped up the oil completely.. so I opened the cap, poured in half a quart.. then forgot to put the cap back :(
15 miles later, I realized that smoke was coming out of the hood. So I pulled over and looked...
You'd be better off buying a low mileage standard car. A lot of people make the mistake of thinking that bmw, mercedes... are perfect cars. They end up crying like hell.
Solution #1:
You need a receiver/stereo that has a digital optic ( toslink) IN .. then you need to get an adapter for your 360 that plugs in to that long rectangular socket and puts out one optical OUT. It's called the "XBOX 360 Audio adapter". Then you connect the audio adapter to your IN...
40 bucks max if you buy the bumper from a junkyard / someone with a wrecked car. Look up on craigslist / auto parts section.
You can fit it yourself, its a piece of cake