questions about battery disconnect wiring

i relocated the battery to a trunk used a sealed box kit. a 4 post disconnect switch. i have the 10g wire ran to the back but im confused on what to do with the alternator wiring. i have it wired to the 4 post on the small positive lead on the switch then to the positive terminal on the battery but as far as the wiring from alternator to the fuse box im not sure what to do