If your factory reverse camera displays a black screen with a yellow exclamation mark, we want to inform you about our two camera plugs: NO 4 and NO 4-1. Please note that if your car is compatible with NO 4, the corresponding yellow plug must be connected at the same time. Similarly, for NO 4-1, the same rule applies.
@Corbin Adams Hi, do you mean that neither No.4 nor No.4.1 fit your factory camera plug? Please kindly send us photos to show the OEM head unit, including a front and back side photo. Your cooperation will be appreciated.
@Corbin Adams We are afraid that the label on the wire is wrong. If you could see any image on the AV IN or Fcam, it seems that the you need to connect the camera cable with the video in to make the rear camera work.
To enable Fcam app, please go to Factory Settings > enter 126 > other > toggle on Front camera
@jeffrey torres Do you mean that your wirings is correct but no luck to see the rear image? Would you kindly send us photos of the wirings and make sure if your car is compatible with NO 4, the corresponding yellow plug must be connected at the same time. Similarly, for NO 4-1, the same rule applies.