Hi there, for about a month the driver's seat has been jamming when it is pulled forward. The little handle, as far as I can see, pulls on two wires which must free catches which lock it in place. The door side of the seat comes free, but it seems like the wire is loose or has stretched on the side in the centre of the car. this side always jams and it is getting worse. How can I get into the workings to see if the wires can be tightened up? Thanks