As a dealership service tech, I agree with all the advice about your mechanic and putting in a larger fuse. If the factory fuse is blowing, it indicates that the system is experiencing a larger load than intended. Putting in a larger fuse is asking for trouble (at the least, melted wiring. Worst, a fire)
Find yourself a good mechanic that can properly diagnose your electrical issues and fix them. The brake system you have, if rated for your setup, should function fine with the factory fuses in place.