Setting up Moca on Premier XL and Romio

I have a premier XL and a Romio Plus I want to establish a moca connection between the two.



I have one moca adaptor for the premier.



I want to set up the premier box at my cable modem in a bedroom and have the moca run to my living room to the newer Romio Plus box.



Can I do this with the current parts I have? I do not have an ethernet connection in the living room for the Romio. Can I still have the moca setup in my bedroom on the premier and then establish the connection with the romio plus in my living room.



Any suggestions on how I would get the two to work would be appreciated.