Prius 2011 Business with IPA new Android auto camera won't work.

Hello Everyone, I have been scouring these forms in hope for some answers but I just cannot find anything that helps me. I bought a 2011 prius Business executive model from a dealer near me here in The Netherlands. I noticed quite soon in would need a new display with up to date navigation. I was able to get an Ainavi H6 working quite fast for everything except the backup camera. I was able to find a 5 pin plug that had the reverse trigger so I was able to get the screen to trigger going in reverse. but now I am very lost in getting the actual camera to show up. I have attached a picture of the original radio and the wires on the back. The grey 5 pin connector in the middle was the one with the reverse trigger. I have tested all the other wires but non of them contain any camera. Because I was fed up I ended up taking the cover of the rear door to check about a new camera installation but I wanted to try one more option for the original camera. My model also came with the Intelligent ParkAssist feature which made me think that maybe the blue connector could be carrying the camera screen but an adapter with that also did not end up working.
All tips on how to get this to work are welcome!