Lerdge auto power module case

I recently added the auto power module to my Lerdge board. It's designed to be mounted on the 2020 extrusions on the side of my Kossel.

Lerdge Power Module:
https://www.aliexpress.com/item/LERDGE-3D-Printer-Power-Monitoring-Module-Continued-to-Play-Printing-Automatically-Put-off-Management-Module-for/32818896817.html

It's designed to use M3x4x4 brass inserts for the board and the top
https://www.aliexpress.com/item/40pcs-M2-5-M2-5-3-8-10-ID-OD-L-Copper-Injection-Moulding-Brass-Insert/32705709316.html

Edit:
Added the wiring diagram and a photo of the wiring on one of my printers.
Some more hints:
Red and Black on the button switch go to + and - on the power supply
The mainboard is wired to the power supply in the same way as it would be without the power module.