I was surprised to see in instructions for live scope 34 plus that require 8awg up to 23 feet and 6 for longer. In my 521 with black box at bow under electronics to about middle of back back battery compartment is about 22' with maybe a 1' excess. Are people really running 8? And my distance is close to max so wondering if need to do 6 gauge? In a year I will be redoing batteries so not sure setup but could have a separate electronics battery in center of back...just depends on what fits where so need to plan on excess wire in case.