Fitting the ignition feed to the CN+
If you already have a CN+, that means you have an ignition feed on Pin 4 on the white connector as seen below.
Feed your wires through as seen below (that photo shows one cable only, it's from a different install, but just feed them through there to the back of the CN+).
Now clamp your +12V ignition feed (orange was the colour selected by me) wire to the wire going into pin 4.