This is the kit I use to fit a PDCI-20V to an RGV VJ22/21 or RS250 Mk1/2
I wire the 2 coil wires into the CDI plug and fit into the original plug on the harness.
I put the pick-ups through the 3 pin (4 pin for VJ21)
Everything else goes in the 12 pin (minus optional accessories/features)
Included are all the pins and locking devices, no need for soldering, just crimp onto wires. It is vitally important crimps are sound and strong. Form the wire into a U shape and bend the crimp blades into the U so it can't pull back out.
You will have to remove your standard harness SAPC plugs to use these.