VorTechS, I would love to know if Oni's firmware is an updated version. I'm still not able to fix my GM Phatnoise system. I think it is the firmware on the box in my vehicle, 2006 Saturn Relay. Also, I forgot the name of the person you said has done some work or would like to look at a GM system. At this point I could send my whole system to someone who would be interested in looking at it and hopefully getting it running.
Thanks,
sage