Battery Switch
 

Im installing a Perko Battery Switch http://www.perko.com/catalog/categor...s/product/148/ this weekend. I understand how to hook up the batterys. Can someone tell what to do with the other things that I need to have hooked up. Should i just run them to a buss bar or is there something else?

I have the same on 3 different boats.
You simply hook the engine (+) wire and fuse block (+) wire to the common terminal on the switch. The engine (-) and fuse block (-) may connect to any of the (-) battery terminals.
Now you need to decide if you want the bilge connected ahead of or behind the battery selector.