Head light connector wiring

[29plycoop]

    In an effort to get a new wiring harness made I find a lot of details missing in the 1929 Plymouth Instruction Booklet.  As noted in a prior thread the steering wheel switch terminals have numbers stamped above them and ARE NOT IN NUMERICAL ORDER. From the terminal next to the engine they are numbered ; 1,3,2,4,6,5.  The wiring diagram in the book shows three wires to both head lights, one red, one black and one brown.  The terminals on the switch that are used for the hdlights are #3, #4, #6. 
The question is witch color red, black and brown wire goes to witch terminal.

On the other end of these three wires that go to the round head light connector, the round connector is numbered on the face of the connector #1,#2,#3.  From the keyed slot in the connector (facing straight up at 12 o'clock) #1 is to the right, #2 is to the left and #3 centered at the bottom.
The question is which number on the terminal is red, black and brown.

The diagram in the manual shows #42 as brown, #43 as red and #44 as black but the fine details as to the correct numbers are left out.  I am going to try to incorporate all the wiring info learned on this project onto an updated wiring diagram and post it on the forum.  Thanks for any help.  Happy Holidays! & Happy Motoring!!!! - Rich