My new (to me) 950 arrived yesterday, and I have begun the process of installing it. I apologize in advance if my question is answered elsewhere, but I have searched the manual and this forum without spotting the answer.

I understand how to configure the 950 to process a 6.1 signal, and I understand where to plug in my center channel speaker on the back of the 950. What I don't understand is where to plug in my single back surround. Does my single RCA cable go to the left back surround connection only, or do I need to "Y" my single cable to both the left and right back surround connections?

I am sure your answers will make me feel stupid, but TIA for any assistance.