First off, I am embarassed to admit what I did, but I hooked up my battery backwards. When I did I know I blew one of the fuses and I replaced it. But now I have no power to the ignition or any of the guages. I have power to the blower, bilge, lights and radio, I can also raise and lower the outdrive. I reset the circuit breaker and checked every fuse that I could find. This is a 4.3 Mercruiser. Any suggestions would be greatly appreciated.