I'll find it, and hopefully the relays too.
This tractor has a large steel pan in the driver area covered by a heavy molded rubber mat that is pinned down by having dimples molded in the bottom that are forced down into holes during assembly. The floor is the same as if there were a cab. Most of the wiring from the rear ends up being hid from view under the floor. The dealer pulled an edge of the mat to show me the steel plate construction before purchase and that part has never been able to be repinned properly, so I don't want to pull the mat up.
The book is written for 4020, 4030, 4040, and 4050 and probably was a translation from the European version. You can see by the attached that it is not trustworthy as far as the electrical descriptions.
They say 3 power sockets but only describe 2. There is a 3rd, a miniature cigar lighter type, on the cover for the lift control handles. With the Array of things sharing fuses and having descriptions such as, "+ key and various supply" in the book, I'll probably have to pull fuses and/or ring out the circuits to see where they actually go.
I do thank you for your ideas and Bob for chiming in. I was just hoping that another member that owned a 4000 series tractor would see the question and have the answer.
Lots of rain here in the Buckeye state today.
Ron