Alright, this might be a stupid question and is probably way more complicated than I’m assuming it is, but would it be possible to convert the PMS PD 2 into a PD board for this project (maybe keeping the USB MUX switching as well?). I know the PMS PD has a 3.3v output, but everything else is a mystery to me. Thee only reason I ask is that I don’t know how much I really trust my $7 board from Amazon to not give out in the future…
EDIT: So, I actually broke both of my Amazon PD boards so that's out the window anyway. After reading some more about the PMS PD, I learned that it supports charging up to 15v 3a, which is exactly what CrazyGadget said I should use. As long as that's the pre-configured value that line is given when it is shipped out, would I just be able to wire up the CHARGE pad on the PMS PD to VIN on the PSU Plus and GND to GND to get it to provide me the correct voltage to power the Wii once plugged in? (I'd also have to figure out the power button situation)