Originally Posted by CRiZO

Good point, mine has issues with cheaper non-3.1 cables. It runs a lot of data to the HU. The device linked doesn't seem like something that would work for android auto. Looks like it's designed to plug into the USB port on the factory HU (mp3's).

I use a USB outlet where the 12v outlet under the glovebox was. Looks like the ones Jayhovah posted. Been working great, and keeps the cable hidden since I use a proclip mount next to the headunit right by it.