Hi, Mally,
I'm about to start the same quest to replace my head unit that matches your old one. Did you find out which socket does what and which lead was the camera?
I recognise it's been a while: From what I've found so far the interface into the parking assist ECU is left-hand light blue connector and it needs a LVDS converter: https://www.aliexpress.com/item/1005007374098960.htm to connect into the Android unit.
Hope that helps