Need 2018 CX-9 Stereo wiring diagram for non bose 28 pin connector

[djnixon]

I have a 2018 CX-9 and I want to upgrade the factory non bose stereo with an aftermarket amp. I need the wiring diagram for the 28 pin connector that comes out of the TAU. I think some of the 2018 's used a different connector (24 pin?), not sure if this is correct but it has been close to impossible to find the 28 pin out details. The CX-9 I got was a 'unicorn' meaning it did not fall into the usual categories, sort of a hybrid between the mid and luxury level models, I bought it because of the good price, I think they wanted to get it out of their inventory. Anyways, not sure if that effects the stereo wiring but could really use some help. Thanks in advance.

 

[theblooms]

Not sure if the 2018 is the same as my 2021, but this is what I did with the amp that's under the passenger seat:

Don't mess with the 28 pin connector. The one you want is the white connector next to it with 8 wires coming out of it...