It sounds like you are having issues with the sounds command control. To be sure lets run a CAN scan to see what comes up. also I have included the radio wiring diagrams so you can see how the system works. You can get a CAN scanner from Amazon for about $40.00.
Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
Images (Click to enlarge)
Tuesday, September 10th, 2019 AT 11:12 AM