I recently added an "AAWireless" adapter by Indiegogo. It allows me to run Android Auto without a wired data connection to my phone. The small module hides away in my center console, even behind my cramped door...
I LOVE IT! My only gripe about this device is that it acts as a WiFi access point and requires both a Bluetooth and WiFi connection. That's okay for most, but I also have a need to run a mobile hotspot, which my phone cannot do while accessing a WiFi network. So, I added a wireless hotspot to my wireless plan. My choice of hotspot is hidden, accessible, and within working range of the interior WeBoost antenna, if I need a boost. I have a Raspberry Pi that's connected directly to the hotspot via Ethernet cable.
I finalized its installation today. Everything seems to work very well! Here's an updated functional block diagram (
CLICK HERE to see a larger version)...