NHTSA Complaint #11718510 — 2023 FORD BRONCO SPORT

There have been multiple occasions where I have started or shut down my 2023 Bronco Heritage Sport Limited and (for no reason I can explain) the speakers started making this extremely loud digital feedback noise, sometimes including the subwoofer. It's hard to stay in the car for too long with this noise going on at an extremely loud decibel. This vehicle has the B&O sound system. I tried a number of things but only after letting the car completely shut down for a few minutes did it eventually stop (There seems to be no volume control when this happens). Thankfully this happened during start up or shut down and not while I was driving, but I'm a little worried about that happening now since I don't know what caused it to happen.