I have found a stereo shop that will install my dvd player and connect it through the satellite radio harness. Will I be able to listen to a different input on the front speakers while the kids use the sat radion input for the headphones? I don't know it the sat radio will play from the rear control. I have the base bose system installed with the rear av controls. I pulled my console and could not find the factory dvd harness. Any input would be great.Thanks.