93 Subaru Legacy Retractable Seat Belts

93 Subaru
The retractable seatbelts are not working. I thought the motor had gone out with the passenger seat when I noticed the shoulder harness no longer retracted. The belt stays good and tight and though sliding under is annoying, it does it's job.

But now the driver's side has acted up. First, it stopped moving, just as the passenger side, but then I noticed the motor was still trying to work and suddenly, the cable from the motor has spilled out and is hanging in the window. The belt will not lock in place. How on earth do I fix the retraction mechanism?