I've already contacted support@empeg.com, and David is sending a correct harness for the sled.
I'll return the faulty one once I get the replacement, so that you guys will have the incriminating evidence to work with.
It took me forever to figure this one out, simply because it didn't occur to me that the pins in the harness would be mismatched. I checked every fr*cking solder connection, multimeter checked everything, and finally zeroed in on the connection at the pigtail.
And then started kicking myself for not noticing that the wires were coming in and leaving in different locations.
Hopefully, this is one of a kind case for you, so this thread doesn't get referenced in Tony's Faq..
Thanks for the help