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Is your camera wired to come on automatically when you put the transmission in reverse? If so, it appears the stop & turn signal power is "leaking" into that same circuit. Maybe a diode has failed somewhere? Or if somebody worked on your toad hook-up between the southboaund and northbound trips, maybe they tapped the wrong wre for something?
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL