He has tried that already, see previous post. It crashes on startup on his phone.

This is unfortunate. Hopefully pioneer will get android auto into the NEX line at some point in the future. Both your phones will most likely be supported.

You may require drivers for your specific phones. For Samsung the driver to allow your phone to "talk" to Mirrorlink is called Drivelink. In checking the Google Play Apps, this is not available for Samsung phones beyond the S3. And, from what I see on Google Play that app doesn't seem to have made many folks too happy.