I have an add on backup camera very neatly installed in my car. I want to replace it with a better, higher resolution camera, but I don't want to hassle with running new wiring through the car. Can I just cut both cameras off their wires instead, and splice the new camera onto the wiring I already have installed? Thanks.
I'm working for a automotive supplier, and hat a look in possible ways to test cameras for a single car manufacturer. This was quite interesting. The cameras all look about the same, but are heavily different.
- Some cameras give an analog video signal via a coaxial cable. This is mainly S-Video with NTSC signal, and can be displayed by your TV (yellow chinch connector). The problem is: S-Video does not support higher resolutions than NTSC / PAL, so there are no higher resolution cameras for this.
Others use some kind of digital video signal. There are some standards, but you never know which one your camera uses.
- Some cameras have just three cables: 12V, 0V and a signal from the reverse light to switch them on
Others are connected to the vehicles CAN bus, and need a message to wake up. This is unlikely for your third party camera
- Some cameras overlay the video with those green and read guide lines, others don't
- The angle of view can be very different. When mounted above the license plate, the camera has a high angle of view, when mounted under the roof, it has a lower, to give roughly the same view. And then there are cameras with fisheye lenses, providing a 180° view. If your new camera has a much different angle of view, a higher resolution will not give you anything.
As you see, this is not easy to answer without more details.