I am sure I am not the only one to do this but it might help someone. I have the usual throttle controller but no matching cable. This is the usual pair:
However, the cable I had was the type where the spring metal sheath is bent to fit into an anchor hole and that cable doesn't fit into the common controller. I found they would fit and work OK if I drilled a small hole in the controller like this:
After that you can simply fit the right angled anchor point into the hole that was drilled.
I hope this helps someone.