Yes, if you have the IT4 4-in-1 cable for a KT controller, it comes with the yellow three pin Julet, while many ebrake levers use the red two pin Julet. I bought some red connectors and grafted them onto the IT4 cable.
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Sorry. Didn't document the wires in the yellow connector. I recall only two pins are active, One is ground. The other is the brake sense line.