[Android Auto General] jahandy:
Hey all, and thanks so much to the developers for bringing this great product to life!

I just wanted to share my experience with the setup process because I had a rocky start and maybe someone with similar issues finds it useful. Please don't yell at me if most of it has already been posted! ;-)

Car: Nissan Leaf MY19 / Phone: Samsung Galaxy S9 (One UI 2.5, Android 10)

Open Android Auto for phones and activate wireless mode:

The basic prerequisite is to enable wireless projection in the Android Auto for phones app. So if there's no Android Auto app in your app drawer, first download the app, and enable wireless projection in its settings. If that setting isn't there, activate developer mode by tapping the version number at the bottom of the settings several times. In the menu on the upper right enter developer settings and activate the setting for enabling wireless projection. Return to the main settings, find the new wireless setting and activate it, too.

Connect to AAWireless via Bluetooth and starting of Android Auto:

First of, I would have liked a little more insight on how to connect to what exactly.

The AAWireless config app is actually not necessary but provides some troubleshooting options in case the setup is unsuccessful and offers some tweaks for advanced users.

The regular process as I understand is the following:

1) Turn ignition on and connect AAWireless via cable to the car's USB port. Nothing happens on the car's head unit just yet.

2) Connect the phone to AAWireless via Bluetooth.

3) The phone should receive WiFi-Settings from AAWireless via Bluetooth and then connect to AAWireless' WiFi without any user input.

4) Android Auto starts automatically on the phone and becomes available on the car's head unit.

Now the phone stays connected via both Bluetooth and WiFi.

From now on whenever the phone is near the AAWireless device it will connect to it automatically and thus activate Android Auto on the phone and the car's head unit.

Throughout my whole setup process I encountered all kinds of LED states: green, red, blue, blinking steadily, constantly lit and whatnot. Frankly I just ignored the LED because without an official legend I find if futile to try and decipher the meanings.

No Android Auto after successful Bluetooth connection:

My first problem arose right after initiating the Bluetooth connection to AAWireless on my phone. Nothing would happen afterwards.

So I followed the steps outlined in the FAQ:

When connected via Bluetooth to AAWireless I opened the AAWireless config app which would take a while to read the settings from the device and sometimes nothing would happen. I unplugged, replugged, disconnected, unpaired and re-paired A LOT.

Finally, I got a working connection by selecting Direct for USB mode and enabling Passthrough mode. After saving and re-plugging the device Android Auto would magically appear on my phone and car.

But - just once.

Stops working:

Now, after having had one successful connection I wanted to test if it works reliably. Thus I unplugged AAWireless for a minute and plugged it back in. The result: again my phone connected via Bluetooth and nothing else happened.

I tried all kinds of stuff, like deleting the app caches, uninstalling Android Auto, unpairing etc. I got it working again from time to time but not reliably.

To add insult to injury my husband's OnePlus 3T started Android Auto effortlessly right. away. without. any. hassles. whatsoever. over. and. over.

So I factory reset my phone!

I know, no one wants to hear this but it actually helped. I've never done a reset in the 2.5 years I've had my phone and I dreaded it. But after all this time, 200 apps, 2 major Android updates and a lot of general tinkering I didn't have to coerce myself too hard. After resetting the S9 I could easily initiate the connection via Bluetooth, it would connect to WiFi and start Android Auto. Over and over.

No internet

Then I ran into the next major problem: the dreaded no internet because WiFi problem. My phone is set to connect to the internet via the cell network in case WiFi is unstable. I also tried the setting in the phone's developer options which keeps the phone connected to mobile data all the time. Both settings didn't change the fact that even though the status bar showed a 4G icon, Google couldn't be reached in Android Auto.

The solution is another brain melter for me. When the phone informed me that WiFi data was unstable I must instinctively have tapped 'Keep WiFi'. This actually kills mobile data and forces all data requests through the non working WiFi connection! As stupid as it sounds: just ignoring the popup keeps both mobile data and WiFi active while choosing an option will sabotage wireless Android Auto. This is clearly Google's fault because they obviously forgot to code an exception for Android Auto to keep it from throwing this error.

Now AAWireless seems to work as it should.

One more thing I had to learn even before going wireless: Samsung's power saving settings can mess up your phone's GPS in Android Auto. It took me a while to figure out that one thing power saver does is it stops the GPS when the phone screen is off. It makes no exception for Android Auto. Thus I could use Maps and Waze on the phone but as soon as I was on Android Auto it would just show me an approximate location and 'jump' from street to street as it only used cell tower data for positioning.

So, good luck to those who face issues, enjoy your wireless Android Auto to those who got it and got it working and a huge thanks to the team who made AAWireless!