I unplugged the speaker for the annoying pedestrian alert slow speed sound and the sound stopped. But, unlike with my 3rd gen, I got a continuous warning message on my screen saying that there was a malfunction with the proximity sensor. Mine is a 2017 Prius 2 with no proximity sensor. So I plugged the speaker back in and the warning message went away. Does anyone know how I can disable that sound and also not trigger the warning message?