Someone changed the ignition renix by that of a volvo 240 b 230 A to 1985

Are you asking a question?

What are you trying to do?

Is a question

I'm interested in wiring installation

Do you mean that someone changed your Renix to one from a 240? People would be interested in knowing the model number, etc, if it works well. They are pretty interchangeable and having had few second hand cars, the Renixes fitted to them seem to be pretty random.