speedo cable. Manual/auto difference?

[skin_dog]

What is the difference between a manual speedo cable and an auto one?
I need a new one and i've found a NOS one but the seller doesn't know which one it is.
Thanks gang

[Devilrod]

Or you can give these guys a call and if their service is still the same you'll have it in the mail either tomorrow or at worst Monday!

Autocables 3 Eliza Close Greensborough VIC 3088 Ph 94341410 Spats, Speedo/Brake Cables and Shades
Phone: + 61(0) 3 9434 1410 http://www.autocables.com.au/

Have used them twice and both times great price (speedo cable trimatic to EK speedo around $80 delivered!) and service.

Oh yeah I'm no restorer so I have no idea if they are the same...