No not talking about anyone trowing up in the car but yesterday evening I was leaving a car park with an automatic lift arm barrier and just when I got to it a high pitch noise started up from inside the car ! Initially I thought it was something inside the car park but as I drove out it got louder and louder. As the thoughts of calling the Fire brigade etc flew through my head and how I was going to get home, I pulled over and turned of the engine and it the noise stopped immediately with a slight crackle from the door speakers. When I started it up again everything was as usual. The radio was off but the Bluetooth was on on my phone and Mrs Beat was doing the social media thing. Just wondering if anyone else had experienced this ? Wondering had the Bluetooth setting on the phone caused some sort of a loop with the electrical motor of the parking lift arm motor. Very strange. !!