i am going though the same thing now, and i could very well be wrong but my understanding is the aemnet - and aemnet+ wires (grn/blk, whi/blk) go too a seperate module for purchase through aem. and are not the wires you use to tap into the prolink+
instead it's supposed to be the white 0-5v analog output positive, and the brown 0-5v analog output negative that you wire directly to the prolink+
which wires on the prolink im not positive on yet as im still waiting for mine too come in the mail.
here is a video i found on it.
https://youtu.be/s_-DOPHVdG8
hope this helps