I ran a dedicated set of wires up forward. 30a fuse at the battery, then into a fuse block.
From there you have separate fused circuits to each of your accessories, and can run smaller gauge wire to each.
The fuse block I used has a built in relay, so when the bike is off so is the power to the accessories. I used the stock fan circuit to switch the relay. No dead battery because you forgot to turn something off.