#1 get a manual and look at the wiring diagram.

You can either keep putting fuses in there, which seems to be less than effective, or you can start tracing wires to see where the short is. It is not spontaneously going to fix itself.

I doubt there is anything on that circuit that is drawing enough amps to blow the fuse. There is a wire somewhere that has shorted to ground, or something on the ciruit has failed in such a way that it is shorted out. Wiring problems suck, but the best thing you can do is to start physically looking for the problem

Michael