Manual Needed for Rear View Camera Power Supply Connection via 12V Relay

Hello all
I need a manual to connect the rear view camera's power supply via a relay, which I put below.
the main voltage goes, say, from the lighter and ultimately is to power the camera, and the start is to take place by supplying the reversing light, throwing the reverse gear.

please tell me where and what voltage to connect in the relay.
thank you in advance for your answers.

https://www.elektroda.pl/rtvforum/topic3092085.html

A bit about the rear view camera:
https://www.elektroda.pl/rtvforum/topic2517258.html#12029654

If you do not need such an extensive module, the system can be simplified by leaving only the time system on the transistor T1. This time system is very useful because it facilitates maneuvering e.g. in a parking lot. The camera and monitor turn off after about 15 seconds after reverse gear is engaged.

Hello everyone, I would like to connect the rear view camera with the display to the honda accord vii 2.2l diesel i-ctdi 2007 where to connect the display cables (+ red) (- black) with an electrician like a Russian bricklayer. I would be very grateful for any help in advance. Thank you

Added after 1 [minutes]:

Hello everyone, I would like to connect the rear view camera with the display to the honda accord vii 2.2l diesel i-ctdi 2007 where to connect the display cables (+ red) (- black) with an electrician like a Russian bricklayer. I would be very grateful for any help in advance. Thank you