Skoda Scala Geniune Reverse Camera Installation

Hi. I bought rear view camera for my car which model is Skoda Scala 2020 at https://www.skoda-parts.com There is a fitting instructions in my order. I have a question for connectivitiy cables. I connected cable in blue socket and one cable in fuse box thats ok. But i dont know how i will other cables apply which socket because fitting instructions shows BCM to apply other cables or do i need canbus cable like i add attachment? Because there is no canbus cable in my parcel.

657054634-NAVOD (2).pdf