Route Assist audio through Android Auto when connected

**Is your feature request related to a problem? Please describe.**
I've come to rely heavily on some custom Assist sentences to help me save random shower thoughts when I'm driving. I set up a Tasker automation to make it easier to use Assist hands-free, but I noticed that the responses from Assist are never routed to my car speakers.

**Describe the solution you'd like**
From my quick research, it looks like Android Auto has a special API for playing media, and it doesn't just pick up all audio like a bluetooth speaker. Would it be feasible to use this API when the app is connected to the car? I'm not sure if Apple users would have the same issue. I'm happy to borrow my wife's iPhone to test if it helps.

**Describe alternatives you've considered, if any**
Right now I just have to talk to Assist and then hold the phone next to my ear 🙃

**Additional context**