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How to install a rearview camera on the 2021 Vios?

2 Answers

MacRobert

07/28/25 8:18pm

You can install a rearview camera in the original vehicle monitor screen. It is important to note that the in-car screen must be capable of interpreting the signal from the rearview camera. Directly install a control screen that can interpret the signal from the rearview camera. If the installation is unsuccessful, please seek help from a professional. After installation, the connection wires of the rearview camera have positive and negative poles. During installation, it is best to secure the wiring harness properly, meaning the wiring harness for the rearview camera must be selected and placed in the correct position.

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OBryce

08/12/25 1:06am

Last year, I installed a reversing camera on my Vios by myself, and the whole process was quite interesting. First, I bought an OEM-molded camera online, the kind that costs just over a hundred yuan, making sure to choose one with waterproof features. During installation, I had to remove the trunk trim panel to locate the reverse light wire and connect it to the camera’s power cable. Routing the wires was crucial—I tucked the cable harness along the door seal all the way to the dashboard, finally connecting it to the reserved AV port behind the head unit. Remember to center the camera position, or the image will be skewed. During testing, I noticed the night vision was blurry, so I replaced it with an LED-equipped camera for better illumination. The whole process took three weekends, but I saved four to five hundred yuan on installation fees. Now, every time I reverse, the clear image gives me peace of mind, and I no longer worry about scraping the curb.

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