Decoding XTRONS 10.1 Radio Connectors 2-9, 23-28 for Reversing Camera & DVB-T Tuner

Hello.
Well, the XTRONSA Chinese navigation is coming to me. Soon I will have to connect the radio, but there are a lot of cables so I need your help. I am asking for help in decoding the radio connectors 2-9 and 23-28.
I have to connect:
1. Reversing camera with wireless module
2. External DVB-T Tuner

Thanks in advance.

2 - control cable for automatically retractable antenna (if you do not have one, leave it unconnected);
3 - cable for radio control from the steering wheel (line 1);
4 - radio backlight control;
6 - video input from the rear view camera;
7 - handbrake applied signal (if you want to have an image while driving, connect this wire to ground);
8 - reverse gear actuation signal (control probably ground);
9 - cable for radio control from the steering wheel (line 2);
23 - video input (here you can connect the video signal from the DVB-T tuner);
24 - the same as connector number 6;
26 - reversing camera power supply;
27 - power supply of an additional microphone;
28 - same as 8.

Thanks.
You know whether the backlight control will work when the car has a CAN bus or will you need to install a decoder?

Connect the radio, if it will not illuminate the buttons, then connect the cigarette lighter backlight, although I think it is "dimmer after turning on the lights", steering wheel control is resistive on this radio, I do not know what your car is. Be sure to look for the ACC signal (with the key), men like to draw electricity.
Ps.

Reverse signal ... 99% plus, but I don't know what car.

Why didn't you buy something branded?
Greetings.

Mercedes Vito W447. Steering wheel control is definitely via CANBUS but I will not use it because they did not let go of the beam.
I did not buy anything branded because I wanted a few functions that other radios do not have. We'll see - if it doesn't work, I'll buy another one
Thanks!

The price is tempting these Chinese radics but I would not recommend it anyway. They do not work for a long time - a problem with the service, although some of them even already have a service in Poland. A friend had such and no service wanted to start fixing it.