70 dart Speedo

Not sure if this is the correct place to post this.

But I was just wondering, any peeps who have modern Speedos fitted (the type that fit in the new style gauge clusters)

Like this for example
s689572963557007764_p1972_i1_w1100.jpg


How have you got them wired in? Not the electrical side that's kinda self explanatory, but the mechanical side.
Do they use the original Speedo cable? Or come with one?

Or are they completely different and use their own setup?