I messed with that plug, and there's no way to put it in upside down or put it on the wrong sets of pins at the back of the CD53. That was the suggestion DICE gave me when I called them and asked what to do next.

Supposedly they're sending me a replacement MB module and wiring harness...at least that 's what they said a week and a half ago. I still don't have it.

I'm getting less and less impressed with them on a daily basis.