My harness came unsoldered while modding in a USB C port at the top of the case's front panel. Since the wires are in a stiff ribbon I could use a multitester to figure it out but it would be nice to have the pinouts in case it happens again.
Since no one could help, I determined it myself and I have to say the wiring harness wire is way too stiff for the remaining wire after the insulators are stripped. This results in a premature failure at the wire, not the soldered joints.
PINOUTS FOR LOQUE GHOST SI MK III POWER SWITCH