I have a Dishnetwork system installed in my Class A Motorhome. It is the Dish Network 500 Disk with DishPro Dual (119W & 110W) Digital LNBF and a Dish 311 Receiver. My motorhome has a single cable feed from a rear compartment to the receiver up front in the salon. I want to add a Sonicview 360 Elite receiver to my system. Can I purchase hardware to allow both receivers to utilize the existing single cable feed from the DishPro Dual LNB?