Labled pin locations for connectors in cab?

I know I have seen this before, I think I even saved it, but like the two dozen pair of reading glasses that are somewhere lost in this house and my deer blind, I can not find it.

My search foo is weak as well, I have been looking for the pin location for the in-cab reverse lights without success (I have the location at the 7 pin trailer hook up, but wanted to not have to run a wire from the back to the relay in the front for trigger), help please!

 

Subd

 

OK, since I have not found a representation, or had a response...

I did locate the reverse wire in the relay box, passenger side of the engine compartment:

Grey plug second from left front row.

Wire is red/blue striped wire second from right, front row of plug, pulled out from the rest:

Had it backwards on original post, it is the second from right...