2021 Ford F-150 Hybrid

Radio started blasting a boom/ static sound from the rear speakers and subwoofer; extremely loud and has occurred multiple times. It had previously made a similiar sound occasionally at start up which when under warranty was always diagnosed as unable to duplicate but is now occuring while driving and I am out of warranty. Very startling and distracting when it occurs. Has occured multiple times and lasts upto an hour before I gave up an parked my vehicle. Have a special needs minimally verbal disabled child who is very sensitive to noise (rear speakers are always turned off via fade to front) who was very impacted by this loud explosion of chaos/ noise when it occured with him in the car. Ford response: since out of warranty can pay for diagnostic and repairs. Don't expect NHTSA to care as they weren't concerned with my complaint regarding complete loss of brakes (incomplete or bad programming) with this truck but maybe this will let others know they arent alone if they have this issue.

Our truck is equipped with the B&O Unleashed sound system. One afternoon, upon starting the truck after completing a brief errand, an extremely loud POP sound occured, followed by terrible static and crackling from every speaker. The noises continued for several minutes, even after noticing the audio system was off and then also turning the truck itself off. The terrible noises simply continued. Although the sound eventually stopped, the truck now regularly makes two or three quieter popping sounds as the driver first approaches the truck; nearly every time. The sounds seem to come from the driver door's speaker. There is also faint crackling on occasion from the headrest speakers.

Audio/speaker system made extremely loud and surprising pop when vehicle on but audio system off. This could very easily startle the driver causing him to take an unsafe maneuver. The problem has not been reproduced by a dealer nor been inspected by anyone, but I have seen other reports of this problem for this model via an internet search. I saw no warning lights prior or after this occurred. Subsequent to this pop, the speakers crackled even when the vehicle was off, but this crackling stopped over the night.

Deafening pulsing noise coming from all speakers , volume button did not turn it off. Shut truck and locked it and did not stop the noise. Unplugged battery and did not stop noise. After about 15 minutes it stopped. Got into truck and there was an electrical burning smell. I have recorded the noise on video. Big safety concern, if the noise happened while I was moving I might have crashed. My ears were ringing for awhile after the incident.

On March 24, 2023, I got inside my 2021 Ford F-150 Power Boost King Ranch Truck, Turned it on. Heard a loud popping sound. Began to drive away. Then all of a sudden there was a loud static sound. The sound was so loud like someone turned the volume to MAX limit and I began trying to turn it off. The radio was not responsive. I started to panic because I had all these vehicles around me and could not think correctly. It was affecting my decision making and all I could think of is turning off my phone, pressing the Power On + Next Track button to hard reset radio , etc. Nothing worked. Loud static sound would stop. Radio wouldnt turn off. Next thing you know Im on the expressway trying to get off because obviously nothing worked. After around 20 minutes, I finally pulled over. Turned off my truck. Then turned it back on thinking it would have stopped. NOPE, sound was still on. Had to get to my destination and when I did. I lost some of my hearing. It was that BAD!!

My radio speakers turned to 100% volume and the subwoofer made an EXTREMELY loud static noise. It could not be turned off. My ears rang and thankfully I wasn’t driving fast enough, as I was about to pull into my driveway. Based on the advice of a thread I read online, the best way to fix the issue was to shut the truck off and let the noise eventually turn off… which took ten minutes. Since I could not reproduce the issue, and based on everything I’ve read about this issue, going to the dealer would not be a benefit of my time as they require the issue to be happening to diagnose the issue. I cannot replicate it again, but if this happens while I’m driving much faster, I fear it will cause me to wreck… or lose my hearing. The noise was quite literally deafening. Please read just one of many threads on this issue here: https://www.f150gen14.com/forum/threads/dangerous-b-o-sound-system-issue.9254/