EDIT: I’ve rewritten this post as I did some further testing in the car on way home from work and found some improvements, but still some significant issues:
Further to the above with regard to SMS:
- Fossify Messages (default app) is now showing some received messages in Android Auto SMS function - however it reports no voice services available to read message, or when you try and create a new message.
- I has temporarily set Android Auto to Always On in Start Android Auto automatically a few days ago to see if that helped, but I changed it back to the default setting of Default (Set by Vehicle) today and so I presume that has allowed SMS to work better connecting with Fossify Messages. I had originally changed it to test if there were some hidden permissions behind this setting, that were different for each option, so might help with the original issues I had.
- However new message notifications that appear still freeze the screen - I presume because of the same can’t find voice services error?
- I have SherpaTTS installed, but obviously it can’t see that or doesn’t like it. So is that suggesting you HAVE to install the Google Voice Services instead of the stub for it to work?
- I am also not sure if its due to having no digital assistant installed? What functions does the “Digital Assistant” actually provide - that aren’t covered by having TTS / STT engines/apps? Will AA not be fully functional without one?
I was going to try a different messages app but am now pretty sure it’s AA and settings related not app. Can AA not manage SMS and similar tasks without the proprietary Google Voice Services installed?
EDIT 2. I have successfully completed basic voice calling tests both in and out. Generally worked okay other than audio quality through car speakers (phone connected by USB) was pretty average at best.
Still need to test OsmAnd maps more thoroughly and there are some other quirks and bugginess navigating apps and functions to be resolved (on top of the SMS issue above).
P.S.
This has improved with reverting back to the Default (Set by Vehicle) option mentioned above.