AUX to USB

Hello together, we had the topic with the USB port in the old thread, because there is actually only one and the 2. yes “only” serves for fast charging and the idea with a switch/hub (which does not work) came up. But the Ceed still has an AUX port, then you could connect a USB adapter and thus use it for a music USB stick and the “regular” USB port for the mobile phone…. Or does it not work with the adapter? Does someone vi Elleicht already tested? Greetings Hotzi