Review on 📸 eRapta ER0202: Advanced Split Screen Backup Camera System with Monitor for RV Truck Trailer Tractor 5th Wheel - Rear and Side Wired Cameras, 4 Channels by Julio Montano

Instructions are very minimal. I did exactly as said and only one camera showed up. I couldn't find any information online so I emailed the support number provided in the brochure. I wasn't sure if I would get an answer but within 45 minutes I got it. Your information solved the problem. I even received another email with more detailed instructions which I will share. There seems to be some confusion as to which wires do what. I tested them all so thought I'd share my findings. Black is ground and red is 12V (specs say up to 24V but I've only tested at 12V). The confusion arises from the remaining color mines. Each of them is designed to give the camera "priority" when a signal is applied down the cable. For example, if you apply power to the brown wire, camera 4 will switch to full screen mode and "turn off" the other cameras. In my testing, I was able to get the two cameras to split the screen to show the two cameras and ignore the remaining two. This is what I will do when I install the cameras in the back of my car - since the cameras don't have a 170 degree field of view like the others, I connect two cameras to the back of my car and mount them. their "priority" wires to the backup lights (so I put the reverse gear in and both backup cameras popped up on screen). So here's what color determines the "priority" for which camera: Blue: AV1 White: AV2 Green: AV3 Brown: AV4 Since the instructions say to hot connect red and brown, AV4 (camera 4) will appear full screen , thereby preventing other cameras from connecting .