Camera-Adapter and 3.5mm Audio Output - how to setup?

In my Scenario, i need the USB Port of the camera-adapter and additionally an 3.5mm audio output. As my iPhoneXS doesn´t provide a built in 3.5mm audio port, i tried to achieve this by daisy-chaining available certified adapters.

What i tried: using the Apple Camera Adapter in combination with the Lightning-to-3.5mm Audio adapter. This setup is refused by the iPhoneXS. As soon as i plug the Lightning-to-3.5mm audio adapter into the camera-adapter´s Lightning port, the iPhoneXS states that this is not supported. Audio is still coming from the built-in speakers.

Another option would be the Belkin Rockstar 3.5mm Adapter (LIghtning to 3.5mm Audio + Lightning). But Belkin themselves say, that even if it is possible to sync with the lightning port, it is not possible to daisy chain.

So: What option to i have to get a 3.5mm audio output parallel to the needed USB Port of the camera adapter? (Bluetooth audio is not an option due to it´s latency - and i would like to avoid buying an extra external USB audio interface).

Thanks in advance

Stefan