It is unclear to me how to set up my Outlaw 1050 AVR to automatically turn on my external amp. The Outlaw has a 12vDC trigger output using an 1/8" mini jack. The Parasound amp has a terminal board marked DC trigger with two screw terminals marked +12v and GND. Should I just cut one jack off an 1/8" mini jack cable and connect bare wires to the amp or is there another device that I am missing? I bought both these components used off CL.