GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
I know it seems like a simple system but some how the Nav lights are tied into the courtesy lights. Not sure if someone did a shade tree repair or if it is supposed to be like that. I got the boat at an auction so I cant ask the last owner.
There isn't a wiring diagram for a boat internal wiring, You either have something miss wired or something is shorting to another connection. Just need to follow the wiring.
This is a basic arrangement and in most cases this is how it should be done but not necessarily how it was done