I have a 625 dual tuner and a 510 that I am trying to hook up. I have a dish pro quad lnb dish and 2 cables running into the house. How can I hook up all three receivers on these two lines. I wondered what my options were. I read that a DPP44 switch and a separator would allow me to run the 625 off one line. Is this true or is there something else that I am not aware of that I will need? Thanks for the info and help.