SaNGRia wrote No not the whole car. Just the JBE. Well can you communicate all the other modules except the TRSVC?
If you can not communicate with the TRSVC check the Software No. If it starts with Numbers then it belongs to F series and i also had one and does not work for our cars! If it starts with Letter (A,B,D) that belongs to E series which is fine. LMK!
I have sourced the rest of my retrofit fine based on the OP but I am getting hung up on the TRSVC. I was verifying the numbers and well, they
all "start" with numbers lol

The only difference or "Letters" I found are at the ending sequence of the VVS P/B and even in the pics you posted it shows only Letters at the end there. Can you clarify where you are looking exactly?
This is the TRSVC I sourced:
The VVS P/N is 908479BB (ends in B)
Seller had it listed
specifically as coming from an e91 328i. Will this work? I didn't know e9x ever came with a factory camera (else we would be using that instead of the F30 camera)
EDIT
I see now where OP stated that I had to look at the software version.... unfortunately I will not being doing this instal for a very long time and won't be able to pull any of the info using BMW Tools. Can anyone confirm if I have purchase the correct TRSVC? Seems like I may not have and I have a return to process soon...