After a fridge fire, the insurance company contracted ServPro to clean the coach. They did a great job cleaning, but putting things back is another matter. They removed the switch box, the satellite...
Search on Amazon for a Coax Toner you should be able to find something cheap online in the $20-40 range. You use it by connecting a small tone generator end on one end of the cable ie. outside the rig, than using the wand end to search for it ie. in the entertainment console area. When you find the cable you are looking for the wand will beep.