This is not clear but when you recieve the module it becomes clear. The wires are already connected to the module you ond have to connect them to the wires in your dash.
Simple tap into the brown and the red wire using the T Taps
Then CUT the Orange and Green/ Green wire.
Now youll have half the wire coming from the car and the other half coming out of the plug.
Now tap into all four of those wires.