How do you install accelerator cable?

Get John Muirs -"How to keep your Volkswagen alive, A manual for the Compleat Idiot" and Bentleys "workshop manual". They have a huge amount of info, John Muir is a "real world" work-book and the Bently Manual is the VW "Official Workshop Manual" . You'll have to get the Bentley manual as they changed the way they did it slightly every few years. But it's similar to all. You'll have to get access to the floor as part of the cable goes thru the tunnel.