My Hurricane FD226RE has lost power to all instruments. The motor start and tilt/trim work but all other electrical don't i.e. gas gauge, depth finder, running lights, tachometer, etc. We changed the master relay and fuses at the battery (two 30 amp, one 5 amp). The two 30 amps were OK but the 5 amp was blown. Changed all fuses. After all that nothing changed. All items still don't work. What do I do now. Is there a master fuse box or a master circuit breaker and where are they located?