I currently have a Helix 10 SI G2N on the bow that is powered by the stock wire that was free in the bow. I also have the Ultrex puck powered on that same wire. The graph and puck are spliced directly to that wire, which I'm realizing is wrong. However, I had no issue with this set up for two seasons.

Now, I'm adding a Helix 8 SI G3N to the console and an ethernet hub at the bow. I am taking this opportunity to run new 8 awg wire from the battery to a circuit breaker (https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1) and then to a blue seas fuse box (https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1) that will be mounted under the console. Then, I will be running 10 awg wire from the fuse box to the bow to power the Helix 10.

Do I also need to run separate wires for each of the puck and ethernet hub directly from the fuse box? I'm not concerned because of cost of the wire, but rather that I'm already having trouble snaking up to the bow. Thoughts?