I am no genius about the wiring of the M35 but Bjorn got me into this stuff.
It kind of beats practicing law, anyway.
My new M35 has wiring issues. I fixed the grounds, rewired the trailer pig tail, changed the light switch and all that.
I got to working on the horn, fixed the button and wire to the end of the steering column, see my other thread on that.
I found the wiring to the horns gone. Some wire stuck on and a complete puzzle. One thing I learned from Bjron was to follow the diagram.
I found the missing wires by looking in the TM till I got to the changing front wiring loom. The graphics told me what to look for, the diagram told me what the wiring numbers were and I am close to fixing the mess.
I also found some wiring around attempts along the way. It felt kind of good to know more than the mechanics who tried to fix the problems.