Wiring Diagrams, could this help you.

[Smithey]

Found this on my travels, maybe help someone along the line.

https://www.bikechatforums.com/viewtopic.php?t=184540&start=0&postdays=0&postorder=asc&highlight=&sid=fe448c3cb4d8419438dc55dbd005ee23

 

[Fudmucker]