Gbert33

Ok... I have been researching this for a while now and still stuck. My 2016 2500HD came with just the cargo light and traction control switches. I read the bulletins and found my truck had all of the correct fuses and relays. I ordered the new switch bank and plugged it in. I found no power on the 4 pins in junction block x61a. I removed a relay and confirmed that it was wired. I even jumped the relay from 30 to 87 and got power to my 30 amp fuse but still nothing down below. Is it possible they put in all the relays and fuses without connecting the wiring to the junction block? Or am I missing something...