Hello!
I got few days ago an OCTACORE double DIN unit for my A3 2007. Supposedly this will be the most powerful double DIN unit w/ Android.

There is still 1 left at $189.00 + Shipping and you will get the following:

OctaCore
2GB DDR3
16G FLASH
Capacitive Touch
GPS Navigation
Bluetooth(BT)
FM/AM radio
Rear View Camera
Steering Wheel Key
Connect iPhone & Android for music via BT
For mirroring;
Android: Yes
Iphone: Not yet

https://www.indiegogo.com/projects/i...t/x/12679152#/