Just ran cables to the back of the Jensonon my ST28BH. I had to unscrew the four wood screws that hold the Jenson in which was not easy. The screws were very tight and I had to be careful not to round them off. Pull the Jenson out to expose the audio/video inputs. There should be a small space at the topon either side of the Jenson leading to the open cubby on either side where you can run your cables. The only problem that I saw was that there wasn't an extra power outlet anywhere on the entertainment center area. The plug that the Jenson is plugged into is only a single, so you may have to use a small surge protector to make more room.
Dan & Megan
Nissan Armada SE 4WD w/ Tow Package and Firestone Air Springs
2013 Sunset Trail Reserve ST28BH