Just called my dealer and apparently an even newer TSB came out today. TSB 08-016-19 Rev. C. First item on the service bulletin says it fixes audio distortion.
So am I understanding this correctly? There is a fix for our stereo issue but we have to take it in to have it installed?
I just got back from the dealer. I made a spontaneous visit and asked about any software updates for my Uconnect system and also asked about TSB-08-016-19 Rev B or Rev C. The service advisor looked up the Technical Service Bulletin and said that yes, it addresses stereos with sound distortion and also volume issues. Right away I'm thinking it's THE FIX for overly bassy equalizer settings and overly loud Android Auto reading of text messages. He said there were two software updates related to this TSB and they would either take 1.3 hours or 1.9 hours to install, and "if your truck scans as one that takes the update do you want to wait while we install it or make an appointment and come back?"
"I'LL WAIT." (It's only been 7 months, I can wait another 2 hours in a dealer's customer waiting area!)
A tech took my truck back and scanned it, but alas, the software updates that would address the issues in the TSB do not apply to my truck. The service advisor said my truck's Uconnect software application version was 21.9, and was up-to-date. There are no other Uconnect software updates available for my truck. He also said he's aware of the overly bassy radio problem and the last thing he heard was that an OTA update was going to be pushed in June to address that issue and many, many more issues. This is essentially the same story I heard when I discussed the issue with the service manager when I got an oil change about a month ago.
So there you have it. Apparently 2018 Rams with the stock 6 speaker, 8.4" screen are not part of the issue being discussed and solved in TSB 08-016-19. I suppose it wouldn't hurt to run your truck into the dealer and have them check it out.