This junction box has no white wires. There are black, a ground (bare) wire. And there are other wires black and light brown that are wired together. There are two sets of light brown and black wires. One set is black and light brown wired together. There is another set like it.
There was a single black wire. I guessed that is the correct black on black wire. Ground was easy to find. There is just no white wire.