Speedo cable adapter

[voucht]

Hi,
I just figured out, now that my fuel lines are definitely fitted, that I can't fit the speedometer cable end in the gearbox... not enough room Bad planning again!
Do you know if some kind of 90° adapters exist for MT75? That would save my life!
Also, I cant figure out how the cable stays in place on the gearbox side. There should be a kind of clip, but I don't have it and actually, I don't remember removing it from the gearbox when I stripped my donor. I would be glad if someone could tell me how it is held in place, and even show me picture of the needed part.
Thank you very much.