I have a US Amps USA-425 4 channel and I have a friend giving me a USA-600X...how do i wire up these amps....I have 4 guage power and ground and a 100A MAXI fuse under the hood....I have a distro block with a 40A fuse for the USA-425 and a 60A fuse for my old sub amp that i am getting rid of. I know the 600X is a 75A fuse rated amp...that means i need to put in either a 60A or 80A fuse in my distro block...which one do i put in so i will not blow any fuses??...I thought i heard that you fuse according to fuse rating of amps and not more than the fuse rating..is this true??...now with either a 60A or 80A fuse and a 40A fuse in the distro block...i have a total of 100A to 120A of power....now does this mean i need a 100A or a 120A fuse under the hood??....hope this all makes sense and hope my install goes cleanly....thanks for the help
