If it wasn't cut or broken you should just be able to route properly and leave the last to getting it upon the BIG tuning pulley, where a light pulling on of the associated tensioning spring should let you get just enough dial cord slack to then just roll it upon the drum / pulley..
Otherwise, we would need photos of all of the mechanics that it is being routed around on.
Otherwise, we would need photos of all of the mechanics that it is being routed around on.