That's hard to find, even here. Replacement and repairs of that cable have been discussed, but only maybe three times in the eleven years I've been here.

Go to Google and put in "Chrysler Crossfire tonneau flap cable" and there will be at least five threads here that come up.
Look at each one. That's the best I think we can do, unless the particular person(s) who have experience with this pop up.

Also, there is SOME information in the 2008 service manual (the 2005 seems a bit thin on convertible top service information).
I have an electronic copy of the top section I think I might be able to email you.