The technology on the my 20 is so much different than my 18 that I just traded in. The volume on the phone goes down and stays down after exiting truck which has caused me to miss many business calls! (Irritating) It no longer reads my text messages to me while driving, instead have to look at phone unless of course I want to plug in for carplay. Very dangerous looking at phone for text messages. Wish I had known some of these things prior to buying, might have considered a different brand. If anyone has a fix for these things please advise. Thanks