Android Auto
For anyone who is experiencing problems with the latest Android Auto and Pie, I have found a temporary solution. I have tried all the tricks mentioned, developer mode, new cable, turning on and off BT/Wifi, etc. Nothing worked except when I plugged a non-powered USB hub into the vehicle and plugged my phone into the hub. It then recognized the hub, and let me finally select the AA app (was always grayed out before). Google Maps seems to work, but when I tried Waze the map would not load. Since I just got this working this morning, I haven't had time to look into it further or test over a long period of time to see if it drops out. I am just happy to finally see it at least recognize my phone. The hub I tried was a Monoprice Aquamini Usb hub (https://www.monoprice.com/product?p_id=6631) although this is probably only a temporary fix until I find a smaller one that works or Subaru fixes their USB communications. (My Essentials PH-1 works without this in KIA and Hyundai SUVs that I have rented in the past)
UPDATE: I switched to a $10 Targus USB 2.0 Hub Model ACH214 and Waze is now working. I have a feeling that most USB 2.0 hubs will resolve the issue. I just picked the smallest one that I could find that would fit in the cubby hole.
For anyone who is experiencing problems with the latest Android Auto and Pie, I have found a temporary solution. I have tried all the tricks mentioned, developer mode, new cable, turning on and off BT/Wifi, etc. Nothing worked except when I plugged a non-powered USB hub into the vehicle and plugged my phone into the hub. It then recognized the hub, and let me finally select the AA app (was always grayed out before). Google Maps seems to work, but when I tried Waze the map would not load. Since I just got this working this morning, I haven't had time to look into it further or test over a long period of time to see if it drops out. I am just happy to finally see it at least recognize my phone. The hub I tried was a Monoprice Aquamini Usb hub (https://www.monoprice.com/product?p_id=6631) although this is probably only a temporary fix until I find a smaller one that works or Subaru fixes their USB communications. (My Essentials PH-1 works without this in KIA and Hyundai SUVs that I have rented in the past)
UPDATE: I switched to a $10 Targus USB 2.0 Hub Model ACH214 and Waze is now working. I have a feeling that most USB 2.0 hubs will resolve the issue. I just picked the smallest one that I could find that would fit in the cubby hole.