I have a 2015 Sierra and I can pause and rewind the SiriusXM feed. I can even shut the truck off and it will store up to 30 minutes of playback. Super handy if you have to leave the truck for a few minutes and don't want to miss anything. On my 19 Equinox, it doesn't seem to have that capability. I read somewhere they dropped the pause function when Android Auto/Apple Car Play came out. Can anyone confirm?