The picture above shows the final connections before the harness is plugged into the module:
9 = power
1 = ground
11 & 3 = CAN (vehicle side)
10 & 2 = CAN (module side)
Since the module serves as a gateway, the signals are translated at the module - the reason for the CAN in/out design.
Hope this helps. If you are any bit unsure of your vehicle's electrical, I would recommend professional installation.