My wifes 69 142 had one of these Delta Mark Ten CDI boxes bolted to the fender, but not hooked up. Im starting to fool around with our 1970 145s and would like to see if it works. Problem being is that there are 4 wires and no diagram :P
Ive seen pictures of NOS ones and there looks like theres some kind of board at the end of the wires, Is there something actually on those boards besides plugs?

I've been searching the web for a couple of weeks now for a clue on how to hook it up without letting the magic smoke out, but no luck.
Im assuming one wire goes to +12, another ground, and the other two on either side of the low tension leads on the coil.

Does anyone have an idea or pic of which wire goes where?
thanks,
Dave.