Bulk head wiring, brake and wiper fluid

[AmadeusCharger500]

I am doing some custom wiring in 73 charger for a modern engine installation. I have a question about the washer fluid motor and brake sensor. The diagram tells me 3rd down on left is wiper washer motor, and bottom right is brake distribution block.
Is this correct same for all 71 to 74 set up? and if so, what is the brown wire from the bulk head light harness? (separate harness not shown in this diagram)

[AmadeusCharger500]

2nd part of question. What is this wire? This is part of why I am asking the previous question. It is tied in with the light harness bulk connector which I bought new.

[TexasGeneral]

 

[Nacho-RT74]

I made that diagram LOOOONG TIME when I was begining on this. some stuff could or not be exact to the year. Several changes were made on bulkhead disposition allong the 4 years and I could be making a mistake on some. As far I recal is that 73... right ?

Only three brown wires on engine bay harness are, one of the wiper motor harness ignition 2 to Ballast and wiper washer motor. The wiper washer and the brake dist block are some of the ones were turned around between forward lighting and engine bay. Starter relay Ign trigger too. If you got the brown harness to washer, then go for it there.

The brake sensor wire got two plugs actually. One to conect straight to the dist block, and the a splice like the one you show, that as far I know it was just hanging around intended for light warning testing on cluster

Also Tach was actually by 72 and 73 run throught the firewall with a grommet, so my bad there ( too ).