Really great work so far!
But your pictures can't bee shown!
Of course I like to help you with the DIY!
Currently I'm working on a terminal diagram that shows the connections of the pins from connector X275 / X279.
But there is still a lot missing ...
I will post the unfinished one, so you can have a look at it.
The colors of the cables may be different!
The discriptions of the pins are translated 1:1 from German to English, so it could be that some of them could confuse you
. If so, then just give me the correct discription ... thanks