I just wanted to get this posted in case others have similar issues with Bluetooth and a desire to use Android Auto/Google Assistant as part of your drive (announcing messages, voice dictating/replying to texts, etc). I have a Samsung Galaxy S9+ FWIW. Bit of a long post, apologies. Hope this helps others. So the premise for the problem is that you can't hear/interact properly with Google Assistant because it plays over the media channel in Android, and can only be heard over the Bluetooth audio input in the Model 3. That's fine if you're using your phone for music, but I don't, preferring Slacker radio. So the only real way to deal it out of the box, is to switch inputs when driving, which is not something I'm keen on doing. So my "solution" was to disable media output to the Tesla from my phone, which made the media play through the phone speakers instead. That seemed to work, but exposed a defect/bug (not sure on who's side) that caused the bluetooth connection to flap regularly as seen in the video, below. This condition completely goes away when media is re-enabled. So I get a solid phone connection again (whew!), but I'm back to square one in terms of using voice. I started thinking about how I could re-route the media channel to the call audio hoping that would work. I used an app called SoundAbout back in the day, but it only crashes on my current phone. After a quick search on Google Play, I found a few apps that can do this successfully, and landed on AudioBT Plus: https://play.google.com/store/apps/details?id=com.turboled.audiobtplus When this service is enabled, the audio is routed through the call channel as desired, and appears to the car as a phone call. It plays through the speakers and sounds great. I do find it's necessary to immediately issue the command after "OK Google", meaning I used to wait until it beeped, prompting me to speak. The pause seems to drop the connection, but if in a single sentence I say, "OK Google Text so-and-so" it works a treat. I don't want the service running all the time, and I have several BT headsets I use with my phone so I needed a way to set it all up just for the car. Fortunately I'm a Tasker user and this app supports intents (instructions that can be sent directly to the app). So basically, I tell Tasker to get things configured for my car when it detects the BT connection AND is charging, as those are the conditions in which I'd be using all of this. Here's the basic Tasker Script: If it detects "Car Connected" and "Power Any" Launch App "Android Auto" Set Media Volume to 15 (max) Send intent: com.turboled.audiobtplus.ON The exit state looks like: Set Media Volume to 2 (my preference) Send intent: com.turboled.audiobtplus.OFF Display > Car Mode: Off, check option Go Home More info on AudioBT Plus intents here: [APP][4.0+] AudioBT: Use Bluetooth headset for GPS and notification audio Depending on your phone, it may be necessary to create a 1-2 second wait between commands, but mine seems to be OK without for now. Hope this helps! TL;DR: AudioBT Plus sends voice assistant audio to the car speakers allowing me to properly interact with my Android and I'm happy now.