M915 headlight switch problem. Odd. Clues below:

[Artisan]

Where can I read of the relay mod? Its been a while, I forget what I did except I took the advice of NOT dimming the dash lights, ever, I do not fully close the hinged panel so in a second I can look at things. I have a good guess of 80 hours running at night w/o seeing an issue. Regarding the connector, I think it is the same as most any Jeep mid to late 70's???
If someone nails this down 100% please let me know. (Anyone have a NTC400 Engine?)

 

[jamboly]

There is good info on relay mod on another SS Thread at https://www.steelsoldiers.com/showthread.php?67474-Headlight-switch-for-m915a1. Pictures are on post #18. I have added copy of a picture I got off of the internet for the switch pinout. Also uploaded copy of my own wiring diagram.

 

[jamboly]

As far as the right switch goes, I went back and looked. I used the S440, and it worked. When I replaced it the last time, I did not use the melted connector. I just put lugs on switch. O'Riellys couldn't come up with a connector so i ordered a Crown Automotive J3205596 connector for $11, including shipping. Unless I post otherwise, it worked.