Hey guys, on the throttle by wire I have the six smaller wires all figured out but what is the bigger black wire in the middle that rotates when you turn the throttle? I've searched but can't find anything. Putting on Yaffe Monkey bars so I'm going to cut out the green connector and splice. thanks

 

Off the top of my head I'd say heated grips. Before you butch it all up and end up with codes - look into this.

https://www.harley-davidson.com/stor...E&gclsrc=aw.ds