Just wanted to thank you guys for your help and advice.....
It was the "input connector" on the back of the receiver after all. I ordered one from Ebay, (off brand) but it didn't work either. I borrowed one from my friends receiver, it worked instantly. So, I ask around and done a little info searching.
I had a neighbor, who installs DISH, formally with DIRECT, check out everything from dish to tv.
Turns out, these are a little hard to come by, only installed by them, with DISH PRO 500, a DPP44 Switch, (""Yes, he removed that one also."") dual receiver, with a DP PLUS SEPARATOR.
Also, that there are a few DIRECT TV Installers that can put this system in for people somehow, for a price that is. Or simply resale them. Now, I have to order a DP Plus from DISH, $29, and a DISHPRO PLUS DPP44 Switch, $199.00, and that's online at Sadoun.
So the jerk made a nice little profit....
I'm out;
DPP44, $199.00
DP PLUS Sep., $29.00 (found one online for 10 bucks)
of stolen property.
Wonder what's in his pocket now?