I have an early 2020 MY LR. It did not come with an external speaker. I bought a used one on eBay and installed it. It then works sometimes. It's supposed to work whenever you are in reverse to make a sound for pedestrians. It also worked for boom box and light show. But, after a week or two it stops working completely. If you reboot the screen/system, it usually returns, but then shuts itself off again? Anyone know what needs to be done to turn it on so it stays??