Warranty and Customer Service---We offer one month money back, one year new replacement and lifelong customer service. Anything unclear, please contact without hesitation, we will reply back within 24 hours usually. Easy Installation with 4-pin Back up Camera---The cable on the camera is 4pin design which is much thinner than RCA, much more convenient when running the wire. Also, the video cable within the package is double-shielded type to ensure better performance. NOTE: our cameras will not work with dash cam, mirror cam or GPS monitors even if they also support 4Pin connection. Both AHD and CVBS Video Signal Available, Camera Guideline on / off Adjustable---This rearview camera can work with both AHD(AHD 1080P 25HZ ONLY) and CVBS monitors. Its output video signal is AHD by default, if you need it to connect with a CVBS monitor, please cut the white cable on the camera and reconnect to power supply. AHD video signal image is much clearer than CVBS. It is with guide line by default. If you don't need it, please cut the green loop and reconnect to power supply. How To Check If This Trunk Camera Meets Your Need---Firstly, please check if the camera size is compatible with your trunk size, and then please note that it only supports RCA connection, if your monitor does not support RCA, then NOT OK. The compatible car models we listed are for reference only, please must check carefully by yourself at first. Attention BEFORE Placing Order---This backup camera produces AHD 1080P 25HZ ONLY video signal by default, if you need it to connect with a CVBS monitor, please cut the white cable on the camera and reconnect to power supply. NOTE: If you don't have a suitable monitor, our GreeYi-08 product is compatible with this camera---: B072FNQQXV.