A further 3 wires are provided for Shift-P2+ additional functionality (see User Manual).
Green = Channel-1 White = Channel-2 Orange = Channel-3
The cable supplied uses high quality lightweight flexible wires. The flat connector is intended for permanent installation purposes only. It is not intended as a connector that is regularly disconnected and reconnected. The connector will only fit with the correct orientation as shown. If you need to disconnect the Shift-P2, switch the power off and push the locking tabs shown to release. Recommended method is to use a small flat blade screwdriver to release one tab at a time.
Micro-USB socket is also included for future firmware updates that may be made available.