Need ModBo Install Diagram for GH-022 Board

I've just received my ModBo and got all the wires soldered onto the chip, and all I need now is an install diagram. Where on the board do I solder the wires? Is there a diagram available? It's a PS2 Fat and the board says "GH-002".

EDIT: Found an install diagram! But I still need help! I can't find the points that I need to solder G, H and I to. Are they necessary?

EDIT 2: Lifted a trace. PS2 no longer outputs sound or audio. RIP PS2.