CAN-view and the like...

Hi there

I am seeing that many of the CAN-view and the other interfaces which allow for an external video input on the integrated LCD display are no longer available for sale.

Does anyone has any pointer as to where I could find technical specifications, pinout, CAN messages, and other things like that, which would allow me to re-create my own interface ?

I'm an electronic engineer so I'd have no problem doing this, and since these cars are like 10 years old I figure some of the information must be available somewhere online.

Only problem, it's buried, and I can't find it !

Alternatively, anyone has the contact information of the designers of some of these interfaces ? Because the interfaces are no longer for sale, I assume they would have no issue sharing some details about the innt