Not sure that would be possible as both inputs (PDC & video) are driven from the same control unit inside the dash so they both activate and deactivate together, i havent seen any configuration options in VCDS that would hint towards anything like that its purely on/off settings no timings or anything
It may be possible to disable the PDC system so you just had the camera view but it would be permanently off, you may also be able to fit a switch to interupt the sensors so they dont display but every switch activation would log an error in the vehicle as it would see it as a fault ie PDC system open circuit
It may be possible to disable the PDC system so you just had the camera view but it would be permanently off, you may also be able to fit a switch to interupt the sensors so they dont display but every switch activation would log an error in the vehicle as it would see it as a fault ie PDC system open circuit