The wiring diagram will make the job easy, thanks. I've started stripping the CNC of its harness and am working on the mounting board. I thought I'd mount all components proud off the surface by some 5 mm to allow maximum airflow around the objects ... should help with cooling on hot days.
I have a 5 amp trip fuse, good condition and works with a range of DC voltages, can use that instead of buying a new one.
The supplier for the BOB does not have the female connectors and none are supplied with the BOB, so I'll follow your suggestion and use the decoder cable.
Thanks for the animation, explains a lot