Now let's move to the positive lead from the alternator. From the factory, the Si comes with a 6 ga lead from the alternator to the factory fuseblock under the hood. There it's fused with an 80A fuse before it's connected to the battery.

I decided to leave the factory lead in place and connected for a few reasons. First, I know that this connection is secure. Second, if my aftermarket connection was to fail, the car will still charge the battery. I will fuse the aftermarket lead at the battery with an 80A fuse as well. Third, removing the factory lead is damn near impossible without taking half the car apart.

Here's a pic of the connector/wire added to the alternator. I ran this wire along with the factory lead, using zip ties ever 6" or so to keep it away from heat and moving objects...