Hello everyone. Sorry for the long story. Guys, help me figure out how to connect the radio in my car.
So, I have a Nissan Altima 2020 for the Chinese market. Purchased and brought to Russia. The package does not include the Bose system. But the JBL DA 460 DSP was installed by the previous owner. There is a large screen on the dashboard and HUD display. Only back camera.
The navigator does not work in the standard radio in my region. And as I know, the navigation information should have been displayed on the dashboard and HUD display.

I bought Dudu 7 12,3 and a Rise CAN bus adapter with wires to replace the standard wiring. But I ran into a problem during installation. The steering wheel buttons do not work, the camera does not work, and no information from the radio comes anywhere. Having tried to buy new wires with a different CAN adapter, the seller said that the wires in mine were mixed up and swapped them. The steering wheel buttons started working and the track names started to be displayed on the dashboard and hud. But the camera still didn't work. The seller advised me to buy other wires and a Simple soft adapter. I bought it and installed it anyway. The camera and steering wheel buttons started working and now the door opening is displayed, but now the track names are not displayed and it seems to me that something else should work. I searched the Internet for a long time for the pinout of my car's wires and can bus, but I couldn't find anything. I also asked the neural networks to help me, but they also didn't find anything. If some of you have ever installed such a radio in such a car, but at least know where to find the wiring diagram for the plugs and can bus, I would be very grateful to you.

if you need more photos I will take any and show you.

I am also trying to find a way to set up my amplifier JBL DA 460 DSP since the previous owner did not leave me any wires or even a Bluetooth adapter to pair with a phone. If someone can help me find a program for Windows, that would be great.