Review on Enhanced Android Bluetooth Navigation Support: Double the Functionality by Andrew Young

I would give 4 stars maybe 5 stars but I had 2 problems with the main unit. First the wiring harness for the main lines, triggers, speakers. Was hooked up completely wrong. So the color code table was wrong. This made activating the AUX audio input almost impossible to play an overhead DVD, and the rear camera shutter release cable was the wrong color. I spent 2 days fixing these issues for a job that should have only taken a few hours as I was running a new line to bypass my factory amp. This is a good device, but the interface for connecting AUX to playback from the system is not even mentioned in the manual. I still don't have an AUX for my DVD player, but luckily I found out that the wiring isn't color coded correctly for my backup camera to work.