As I recall, beyond the instructions that I copied in my first reply to you (and the power source adjustment that I mention
1) I connected one of the 2 white connectors that you show in the picture above to my factory harness (the other white connector is unused for our application)
2) The yellow male RCA connector is connected to the back of my headunit (the female rca connector is unused)
3) the remainder of the wiring connections are per the instructions
... since you are turning the unit on with a button on your head unit ... I am really wondering if you are actually getting power to your camera (especially since you mention powering your camera via a 12V connection to your adapter and getting a signal, albeit blurry) ... you could try disconnection the rca connector (yellow) from your head unit and see if it behaves the same ... if so, then pressing the button on your headunit is simply turning on a program on your headunit
I need to return to my work, but if you can better describe why you believe that you camera is getting power, then I am happy to help