This is driving me crazy and I do not know if it is the radio or my phone. Sometimes, when I receive text message, the volume of my music playback goes down to announce the message but it never goes back up. So I am stuck in a low volume mode and I have to crank the radio up by about 75% to have normal listening volume. Anybody noticed behavior like that? I have 2016 SXT with the 8" SAT/NAV radio.