We just brought home a 2014 Sundance 3270res last week and are taking our first road trip on Friday. The unit has a Genesis GT-2.0 unit and a Sansui TV. I assume that the DVD audio will be played through the "surround sound" Genesis system. Is there a way to play the TV through the Genesis? In my previous trailer, my TV had an 3.5 plug that could be connected to the radio.