Although I had inserted this in my mod thread on the 991 Turbo board, I thought it deserves a separate thread for anyone who wants to add the NAV TV front and rear cameras to their 991 and integrate it right into the PCM.

Detailing Dynamics has now finished installing the NAV TV front and rear camera and integrated them into the PCM. It works like a charm. Front camera activates when you press the rear defroster button twice. Rear camera activates when you shift into reverse. See the attached video YouTube video of it in operation in my car.