Here's some other wiring I did on a 20ft Mako.
The boat has a single DT-140 Suzuki. The batteries were moved inside the console. It has a Start & House battery with a Blue Sea's ACR unit to charge both batteries. It also has a 3rd master switch to combine the House batt. to the Start batt. if needed. I don't really like combining the batteries with the ACR to start the motor. This is due to the amperage load of the starter motor.
Blue Sea's has since come out with another new setup that look's pretty neat.
http://www.bluesea.com/product.asp?P...&d_Id=&l1=&l2=