3-speed switch with Lyen controller

The controller came without the 3-speed pigtail to connect to. Lyen's been great, and in several days time I received a pigtail to solder onto the board.

The wiring for this controller is:

wire color > controller board hole location

red             x1

green         x2

black          gnd

From Lyen: The way it works is speed mode 1 is the program engaged when the X1 and GND is shorted on the controller board, open = speed mode 2, and X2 short to the GND is speed mode 3

Using a PC power supply to power the charger

Modding a used Enermax Liberty 400w PSU. It's very quiet so i can charge at the office. Enermax wrapped the inside very nice and tidy, I only had to solder the green wire to ground to convince the PSU it was connected to a motherboard, and prepare connectors for the +/-12v.
No need of resistors whatsoever.