Camera is RGB over FPD-link III.
Screen output on head unit is likely LVDS over FPD-link III.
FPD-link encapsulates (setializes) the signal so that you can send a whole bunch of data over 2 wires of what used to be 8(?) strands for RGB.
It needs an encoder on one end, and decoder on the other.
There are vehicle specific devices to do what the OP wants. They're anot $300 on eBay.
Screen output on head unit is likely LVDS over FPD-link III.
FPD-link encapsulates (setializes) the signal so that you can send a whole bunch of data over 2 wires of what used to be 8(?) strands for RGB.
It needs an encoder on one end, and decoder on the other.
There are vehicle specific devices to do what the OP wants. They're anot $300 on eBay.