Re: surround sound in vehicle
To have real Dolby surround sound decoding and 5.1 or 7.1 sound you need to go old school or build a Car PC. Alpine is one company that used to make true surround sound equipment for the car. It never caught on enough to stick around, because when you're "supposed" to be parked to watch a movie your market for surround sound in the car is tiny.
New online business launching soon. Specializing in car audio system designs and sales for those seeking great sound.