i have searched the forum but i have found no info as of yet. i want to put in new starting wires from battery 1 to switch, then battery 2 to switch, and then switch to starter on the 90 amp fuse. not sure if the 90 amp fuse is needed but its there. the length of wire will be 5-7 foot each. i do know the bigger the better but what is the min gauge of wire to use. i heard not to use the CCA wire but i only fish in fresh water and always trailer the boat. thanks in advance.