I've got the same car. Sorry, no it doesn't have the cable in place, I had
to do it myself. It's not really that difficult, you can route it behind the
boot side panel and then down the side of the back seat and then lift up the
plastic trim at the bottom of the doorways and slip it under. I just pushed
it under I think, rather than taking the trim out completely. That all ends
under the dashboard and the rest is easy. Hope this helps,

Neil