Yes, after thinking about it for all of 30 seconds I realized that a fuse is required at the battery end of a long +Bat Cable run.
Most of the stuff I saw online (looking for ideas) put fuses under the hood, but about 15 feet too far from the battery.
My concern about some of the stereo component stuff is how will it do under the hood, say with the extra heat of a turbo

???
That's why I was thinking of the "remote battery terminal" that the Chrysler cloud cars use.
I don't know how familiar you are with these cars, but the battery is in the front fender, down low, and the cable is run to a standard battery terminal near the engine. This allows for easier jumpstarts.
I was thinking, if you could mount the same thing, it's already made to connect battery cables, etc.
So who has pictures of their underhood wiring for a battery relocation?
TB