I am also interested for the same reasons.
So far I've been successful just cramming enough wire into the factory female connectors then taping and zip tieing the wires in place so they don't wiggle free. But a proper male end would be better.
Haven't wanted to ask KTM what they want for it... probably way too much!
I've got a brilliant electronics shop in the area that I plan to visit as they have tons of connectors. But just haven't gotten around to it yet.