All I see on the back are these "Remote IR In/Outs" "Remote IR Input: If the AVR 230’s front-panel IR sensor is blocked due to cabinet doors or other obstructions, an external IR sensor may be used. Connect the output of the sensor to this jack." "Remote IR Output: This connection permits the IR sensor in the receiver to serve other remote controlled devices. Connect this jack to the “IR IN” jack on Harman Kardon (or other compatible) equipment." Even on the flagship AVR7200 there doesn't seem to be a 12v trigger. Is there something I'm missing, or am I right assuming that none of them have triggers?