The strangest thing tonight... or maybe I’m crazy. The seatbelt chime and back up warning beeps are suddenly different. When I start the truck with the doors closed, I get the “doo doo doo” chime a few times. Did it always do this?? I swear it only did it if I drove away for awhile without the seat belt on. Or if I opened the door when the engine is on. And the back up warning beep (when backing up close to an object) sounds different. It is less loud and like it’s coming from the instrument cluster. It sounds like it’s coming from a small mono speaker rather than prominently from the stereo speakers. Am I going crazy - was it always like this??