Home theater bypass


Hi I am am new member I need some help with routing for my home theatre. I have a Onkyo 7.2 receiver and a mac275 amp with a cj pre amp. My speakers are Maggie's which I use for both systems I'm plugging and unplugging every time I want to use one or the other. How can I wire up a permanent setup to avoid this. Any suggestions would be great!
audiomaze
https://www.computeraudiophile.com/uploads/monthly_2013_09/58cd96b7e0681_HomeTheaterBypass.JPG.02904...
In the schematic, CDP is a compact disc player (CD player), passive pre is the cj and amp is Mac 275 and receiver is Onkyo 805.

Maybe this schematic give you a better idea:
http://daveayers.com/Audio_Diagrams.htm
Please tell us exactly how you have this whole thing hooked up.  Something's wrong somewhere. 
Ok the DVD player is connected to the receiver with a hdmi and connected via the audio outs to the preamp inputs. The receiver preouts are connected to the preamps tuner inputs. The preamp is connected to the Mac then the speakers Maggie 1.7.