You put a splitter on the end f the coax that is running to the HR44 like this.
Then you run a short coax to the HR44 and a coax to the Mini.
It would probably work better and not cost any more if you got DirecTV to come out and install it. It should not be more than $50. That is for any parts, coax, etc. and the labor to hook it up and check the whole system out.
Coax from Dish to splitter, PI to the red port of the splitter, IRD port on PI to the HR44, Open port on splitter to C41.
Edited by jimmie57, 05 July 2014 - 02:59 PM.