In addition to the 35 wire connector issue, the SESG2 does not have (at least I couldn't find one in the wiring diagrams) a 6A "audio harness" like all other non-CVO SG, EG and RG models, but the installation instructions for the CB module refers to making that connection (6A to 6B) from the non-Ultra overlay harness (NUOH) to the interconnect/fairing harness. Stated another way, the CB installation instructions say to make a connection from the NUOH to a connector that isn't on your bike's wiring.
If the connector isn't on your bike (and it doesn't appear to be based on the wiring diagrams), the tech will probably need to find a work around solution since those wires that would be found in the "audio harness" 6A are there, just not in a separate connector.
It's been many months since I installed the CB module on my 04 EG as part of retrofitting the Harman Kardon radio, and my memory may not be accurate, but I have a strong recollection that I miswired the audio harness 6A (one of the wiring changes on the 04 was to replace the audio harness connector (the 04 was a 3 wire connector, the '06 and newer is 6 wire; and change the wires) to replicate the '06 and newer audio harness. And, until I found that mistake, the HK unit did not recognize that the CB was connected. Like your installation, I used the NUOH with the other connections to it (CB module, rider headset, etc.)
Carl