ok so your sayin that i have an amp with a 30 amp fuse in it it is ok to put a 100 amp fuse in the front? If that is the case why do they make all the different size fuses for the inline holders, why don't they just sell a 200 amp fuse for up front for every single amp kit ever produced. thats right cause it is supposed to match with the amperage you have with all the amplifiers you have added up.