This post shows a pic of my setup with "military style" battery clamps.
http://forum.ih8mud.com/showpost.php...5&postcount=15
You can get these clamps at stella maris too, but they are called "marine" and/or MilSpec:
https://www.stellmar.com/content/ele...ml/3534_35.php
Also shown in the picture in the first link is a power distribution post that I also got from Stella Maris. This allowed me to move all the auxillary wires off the battery and to a remote location, giving a cleaner set up at the battery.
https://www.stellmar.com/content/ele...utionPosts.php
I've had good success with the product from Stella Maris. The parts have a low unit cost, but they have a minimum $15 order...
I'm not sure what fuse box you are using, but can you connect the two cables at the fuse box. Terminate each in a ring terminal then bolt the two rings back-to-back to the fuse box.