I decided to try the NAV option on my 2020 R/T today. I have the settings dialed-in for voice guidance, which worked for about 2 minutes, then nothing. What's odd, is that although I cannot hear audio guidance, the drivers side speakers shut-down as though the voice guidance feature is working. I tried shutting-off NAV, but the drivers side speakers were still toggling off, as though the NAV was still functional. So, I hit the Uconnect assist button on my rearview mirror... The UC rep had me go through the motions, but could not get the audio to operate. He recommended that I take it to Dodge. I sure hope this isn't a sign of things to come? I'm reading horror stories in regards to the 8.4 Uconnect system.