Fabbed up the cable and everything works! Total cost was $2 :-D
For a reef keeper, all you need is a stereo dual male 3.5mm cable. Cut off one end, strip the wires, connect the red wire to the red wire on your 2pin plug, the white wire to the red wire on the other two pin. The yellow ground to both black grounds on the two pin, and you're done.
The pin on the jack is intensity. The ring is spectrum.
Setup dim A and B to your liking and you're all set. Fyi, the lights will not turn on below level 10. So plan accordingly