Where to connect 5.1 analog on ONKYO 575

[Collectors Set]

I am trying to help out a buddy. He has the Onkyo 575. Go here and click on rear view in the photo gallery

http://www.onkyousa.com/model.cfm?m=...class=Receiver

Where would you hook up the analog 5.1 via RCA connection scenario that crack stickied?? In the middle of the back with colored inputs, where it appears to be the place, it says Surround and Surr Back. No where does it say Fronts like it does on the back of his bluray player. It also clearly has a box outlined saying 5.1 connection on his bluray player but this is not evident on this Onk.