Very good friend, your interesting video, right now I'm going through that, could you give me information where I bought the camera and what price it is, or where in the United States it is located
In all likelyhood we are watching someone get ripped off. These cameras, especially OEM, are incredibly overpriced. Blue screen with guiding lines means it's either a loose connection which can be tightened, or corrosion which can be repaired by an amateur. This person probably paid a thousand dollars to have this done on a 9 year old car.