I inherited a boat with a Mariner 100 hp outboard on it, I noticed a red wire disconnected, tracked it down and it went to the back trim switch (that did not work) reconnected wire and now it works. Went to test the boat out and the buzzer went off as soon as I turned key and would not stop. Disconnected that Red wire and it shuts off and rear trim switch will not work. What would I need to replace or how to fix this? Thanks!
