Ok, now for a followup! As you can see in the image I’ve included, the original PS3 PCB here took both of the harnesses coming in from the array of connections below the buttons themselves (I don’t know what the actual term is for that). I definitely understand that the end of those harnesses that was previously going to the regular old PS3 PCB need to stripped down, and the appropriate wires need to be run to the appropriate screw-downs on the Cthulhu (I’m not sure how those map, but there must be documentation for that).
Now the old PS3 PCB also had an input coming for the harness coming from the joystick itself, which seems to have no way of actually connecting to the Cthulhu, so one might assume that those wires need to be stripped and routed to the appropriate place on the Cthulhu as well.
I guess now that I type this out, what I’m asking is there any sort of diagram that exists for me to be able to map these wires appropriately to the Cthulhu? I’ve found similar diagrams for the 360, but not for the PS3.