It wasn't hard once I figured out how everything worked. I made a dummy wall and attached my two amps (pics coming soon). Installed 4 Pioneer 4 ways in the boat, added a 12 inch sub,and put in a new deck! It sounds awesome!
Thank you guys so much for all your help. Especially to Jason and Psyclone! Couldn't have done it without you!
Next project, adding another battery.