There is supposed to be a 14 gauge fusible link off the pos terminal which you can purchase already intalled on the cable or add one to existing pos terminal. This should run a short distance to a junction block which bolts to inside of the radiator support just along side of the battery. The block has one stud which connects the fusible link to a 10 gauge wire which runs to your main splice on drivers side of car, just below the horn relay.

I know this drones on further than you probably needed but maybe it will help someone else!