[Issue] USB C to Audio Output

[ktimque]

I grabbed a two pack of some dongles to convert Type C to audio, they work for standard iPhone headphones, but not if I plug in an aux cord . The phone recognizes it as headphones attached but no sound every comes out.
Any idea how to fix/have you guys used any brands successfully with aux cords?

 

[prea50]

Same problem for me.
Any helps?

Thanks

 

[klym.software]

Does the dongle have a built in dac? If not try unplugging the dongle, go to settings, enable otg storage, then plug in the dongle. I need to do that for my dongle