Looks like it’s been awhile on this post, this same scenario has happened to me 4-5x now. Clicking the source button on the back of the radio helped until this most recent time. Couldn’t find a solution to get the volume back. Will check this afternoon and see if it’s working. The common thing I’ve noticed has to do with remote start and/or the key fob. For example, everytime it’s happened to me I’ve remote started the engine. Until today, where I pulled the truck out of the garage, got out to throw trash away with key fob in my pocket, then got back in the truck to drive to work and no volume. I didn’t check to see/or turn on the radio between turning it on/pulling out of garage and getting back in from throwing trash out. Anyone else noticing this theme with the key fob or remote start?