340 searay electrical

Hi I have purchased a 340 searay and am having pretty big electrical problems with it I am experienced in electrical and need to have a map of everything .

It seems like every model has an "official thread" except for the 370 DA. What an awesome boat! Not to big, not to small, moves okay with gas motors. What's not to like? Any 370 owners with me on this? I'd like to hear from you guys. With a few changes I made to my boat (camper canvas, flat...