Welcome I'm Chris aka Moose
Below is a link to the wire diagram.
I am not quite sure that is going to help though, since there are no connectors at the battery junction box so there is not a pin chart showing which wires go where. Look over the diagram and report back, we may have to diagnose the symptoms, but I am quite sure its going to return to a wire issue.
-----------About me and Just Answer------------
I am in my upper 30's, have a wife and 2 sons. I farm, fish, hunt, build, and coach youth soccer. I work on anything with an engine, been to many schools and classes through my 12 years with the dealership to get trained and certified. I try the best I can to share what I know and or have access to with my customers. Please consider I base my questions and answers to you, solely on the information you give me since I am not there to see, smell, hear, touch, or test. I try my best to be here everyday starting at 3pm central. Rating an answer is required. Please let me know if your not pleased prior to rating or if you cannot rate me so I can try to help a different way. God Bless and have a great day.