I need to replace the stereo in my 04 Tahoe. I have a Double Din Kenwood I used to have in my Silverado but the Tahoe has the Bose surround and rear DVD player (The Double Din also has DVD capability). Is there a kit available so that i can wire the rear system to the new stereo for surround sound? im guessing, a standard adapter kit would not allow for the rear TV to be played through the vehicle speakers; only with headphones. Thanks in advance.