just check my dish and found I have dish 1000 dish with 2 cables connecting to single node and no sign of a third cable, will I be able to use dual node with these cables, all schematics show 3 cables from dish to dual node[FONT=arial, sans-serif]. Currently have hopper sling and 2 joeys, I want to add another hopper sling and joey to my system[/FONT]