I got this USB-C to 3.5mm aux cable to play audio from my phone, and it works well for basic listening. The sound comes through clean and clear with no noticeable buzzing, distortion, or connection drops. At 6 feet long, it gives you plenty of slack to plug into a car stereo aux port or home speaker without feeling tightly stretched across the console.
The only thing to keep in mind is that the wire itself is really thin. It doesn't have heavy braided reinforcement, so you'll just want to be mindful not to pinch it under car seats or yank on it aggressively. That said, the connectors fit securely in both the phone's USB-C port and the aux jack without wiggling loose. For a simple, budget-friendly cord, it gets the job done cleanly.