I have followed developer Emil Borconi-Szedressy's AAGateWay project at XDA Labs for the last year. It uses an Android TV stick or an older Android phone, plugged into the USB data port of Android Auto compatible head units and acting as an intermediary to support Android Auto over Wi-Fi. It has been a hit or miss, reflected by the length of the forum thread (300+ pages) at XDA Labs, due to the large number of possible hardware/software variations. A few months ago the developer mentioned that he had teamed up with someone with hardware experience and they might pursue crowdfunding to build dedicated hardware running Linux to achieve the same goal.
Over the weekend I noticed their AAWireless project on Indiegogo and decided to back it. They have a working prototype that has been tested with a number of vehicles, including Honda CR-V. Initial handshaking between this gateway device and an Android phone is completed over Bluetooth, then the communication moves off to Wi-Fi. The startup time is a bit long, in the 30-40 seconds range, but for $55 plus $20 shipping I am willing to give it a try. If it works, then my phone will be sitting on my van's wireless charger most of the time and I can finally close the center console; when there is a need to recharge the phone's battery quickly, I can use its 25W OEM charger and still be able to use Android Auto.
Over the weekend I noticed their AAWireless project on Indiegogo and decided to back it. They have a working prototype that has been tested with a number of vehicles, including Honda CR-V. Initial handshaking between this gateway device and an Android phone is completed over Bluetooth, then the communication moves off to Wi-Fi. The startup time is a bit long, in the 30-40 seconds range, but for $55 plus $20 shipping I am willing to give it a try. If it works, then my phone will be sitting on my van's wireless charger most of the time and I can finally close the center console; when there is a need to recharge the phone's battery quickly, I can use its 25W OEM charger and still be able to use Android Auto.