2022 Nissan Rogue Sport

Several problems have shown up since purchasing this car in December of last year. The back window has rolled down on it's own about 6 times within the same week I purchased the car. The head unit in the vehicle had to be reset by the dealer when they first traded the car in, according to service history and it's still having problems. I can hear the other caller on phone calls intermittently but they can't hear me. My phone has briefly disconnected from the Bluetooth system saying it couldn't be found. I thought it might be a phone issue but I got another phone and it still does it. I have a video of the head unit being completely unresponsive. The music was playing but none of the buttons were doing anything when I pushed them and the map was all that it would show. I've also had issues with burning smells when using the heated steering wheel and heated seats. I believe there is an electrical problem causing all of this but since the dealer can't duplicate the problem when I've driven it into service, they are refusing to do anything. The collision detector also goes off on it's own when I'm nowhere near another car.