This might be a boat issue but I believe it’s in the motor, that’s why I’ll ask for some help. Have a 2014 Mercury Verado Pro 300 supercharged on our Bennington. We used our NEW/USED boat all weekend, got home Sunday and unhooked, cleaned it up, killed power. Came home after work on Monday and I heard a noise coming from the boat. The motor magically trimmed to the max bottom and was still running. I hit the trim up button on the motor and it stopped. Walked away and it trimmed all the way up on its own. As I tried to figure this out, it has did it numerous times. PLEASE HELP