I pulled the cable through 'till there's an inch or two of cable left inside, I then put the end of the pcb nearest the aerial cable into the case first at an angle, you can then pull the rest of the cable through, don't worry too much about moving the cable soldered to the board, you're unlikely to damage anything. Once you've done that the rest of the board should slide in quite easily. It is much easier with one of patricks new aerial leads.