The 'Requiem City' audiobook you're looking for is on a few platforms, but the version really depends on what you value. I bounced off the narrator on Audible—his voice was too clipped and modern for that neo-noir atmosphere. I found a much better fit on Google Play Books; the narrator there has this gravelly, weary tone that perfectly matches the detective's inner monologue. The production includes subtle rain and city ambiance during scene transitions, which some purists hate but I think adds to the immersion.
Your library might also have it through Hoopla, which uses the same recording as Google Play. That's a free option if you have a card. Honestly, skip the version on Apple Books. It's the same narrator as Audible but mastered at a lower bitrate, so the audio sounds slightly compressed during the quieter scenes.