Pinout description for Audio+ V3 to a breadboard

Thank you, but still not clear enough for me to understand.
According to the Installation link AUDIO+ installation guide the following should be used on the Raspberry:
-GPIO21 (pin 40)
-GPIO19 (pin 35)
-GPIO18 (pin 12)
-Ground pin (connect at least one : pin 6, 9, 14, 20, 25, 30, 34, 39)
-3.3v pin (connect at least one: : pin 1, 17)
But nothing about the corresponding holes on the Audio+ V3. And nothing in the guide about 5V.

As fairly new to the Raspberry platform, it is not clear to me where to put the above Pins from the Raspberry, onto the Audio+ V3 board, using something like a breadboard or a protocard?

I can see that the Audio+ V3 board has a 2x20 pin layout as well as a 1x25 row but it is not clear to me if the 1x25 row doubles some of the 2x20 row pins, and/or where the Raspberry GPIO pins are connected on the Audio+ V3 board.

Please advise for me as a novice.
Kind regards, Ricotico