The fusible link supplies power to a circuit breaker in the fuse block (lower left drivers side firewall inside). Remove the circuit breaker, it's likely the short is between the fusible link and the circuit breaker and not inside the vehicle. Between the fusible link and the bulk head connector or maybe between the bulk head connector and the fuse block.
If you have stick, check and see if the fluid has been leaking out of the clutch master cylinder onto your fuse block. It can eventually eat up the plastic and cause grief.
I'm pretty sure the 92 is pretty close to the same setup as the Renix at least inside the passengers compartment.
I don't have a plan for the 92 fuse block (inside) but seem to remember the circuit breaker being a little silver box, 30 amp I believe. There is another circuit breaker in the fuse block for the windshield wipers 5-6 Amp or there abouts.