Hey guys,
I'm installing both a PC and XBox360 in my cab. Some buttons on the control panel are going to be XB360 only (via MadCatz Fightpad common ground PCB), some are going to be PC only (via iPac) - a select few are going to have double-duty.
My question is... is this an acceptable wiring schema for buttons that share double-duty?

There's no concern over 'double inputs' to the PC and XB360 as the buttons will be separated from each CPU by a 4Pole Relay. When the XB360 power is off, the controls will interface with the PC. When the XB360 power is on, the controls will switch to XB360. My only hang-up is this wiring.
Thanks!