DS3510 customer connect electrical location

[logskidder]

Greetings
I have searched the Forum but no joy. I am looking for the Customer connect plug on the DS3510 so I can hook up my Grapple valve.
I found the fuse NP It is clearly marked in the Schematic one RED wire one Black wire
short of un wrapping the entire wiring harness I have looked everywhere. Local dealer thought it should be taped up under the dash.
any insight into where this is located would be appreciated
Thanks
Tim

 

[logskidder]

I guess no one else could find it either. I gave up and put in one of these