Haven't found this exact issue anywhere else on the internet, so I figured I'd check here to see if anyone knew of a fix. The issue I'm having is using the talk button to bring up Google Assistant. When I'm connected to USB and using AndroidAuto, this works perfectly, but not when I'm only connected via bluetooth with my phone in my pocket and not using AA, which is 90% of my driving. I recently tried this with an iPhone XS Max and it works great, but not with my S10. Is this just a phone compatibility issue or is there something I'm missing?