Warnings problems of the 2020 Toyota RAV4

On or about 8/21/23, we were driving from vermont back to our home in new jersey when the sound system started malfunctioning. First, we lost all sound (safety warnings, as well as radio). The sound returned and then cut out again repeatedly. Then, the speakers emitted loud (full volume) static and popping sounds despite the audio system being "off. " at the time, we were driving at approximately 65 mph on a highway with our two young children. The noise was so loud that it was difficult to focus on driving. The static and popping sounds continued until we pulled over and shut the car off. These failures have continued and increased in frequency since that time. Our safety was put at risk in two ways: 1) all of the safety warnings were and are muted and ineffective and 2) a full-volume static/popping sound while driving at highway speeds could have caused an accident. Subsequently, we did the following: -googled the issue and found a relevant technical service bulletin published by Toyota in September 2020 that applies to our make/model and VIN. It is labeled t-sb-0086-20 and can be found here: https://static. Nhtsa. Gov/odi/tsbs/2020/mc-10181786-9999. Pdf. This suggests the issue applies to multiple Toyotas. The bulletin indicates the VIN number where the issued stopped -- suggesting Toyota took steps to fix it. There has been no recall related to this issue and we were never notified of this issue. The issue is apparently related to a defective amplifier. -brought our vehicle to our local Toyota service center (paul miller Toyota of west caldwell NJ). An employee there was able to reproduce and confirm the issue and recommended replacing the amplifier. -called Toyota to report the problem and register a complaint given the safety issues, failure to notify us of the problem even though it was known to Toyota, and the cost of repair ($2640). There were no warnings, messages, or other symptoms of the problem prior to the failure on or about 8/21/23.