Iwas in the process of reinstalling a rebuilt alt on a Mercruiser 5.7 w/ twin battery connection. Needless to say I blew a fuse and I can't find the right fuse. I checked all thr fuses at batt switch as well as the one attached to the battery. Even with the key on and batt switch on I still have no juice to the dials. Also would like the proper connection for the alternator wires. Orange, blue,red/purple,and black. Orange and blue are 10 gauge The alt is a Mando 97 merc. thanks