Just a noob question. What is the blue and black 2 gauge wire that comes off the stock fuse block for? Starter? I'm trying to install a fused distribution block but I'm having trouble putting in the blue and black wire (it's too large). The block has 1/0-4 gauge input and 4-8 gauge outputs (stinger SDH821). I'm trying to put this wire in on on the outputs so I can fuse it. I've seen other guys use this block with their battery relocations, so I'm not sure why I'm running into this problem.