There are usb slots under the center console and under the infotainment hidden area for your phoneI have been frustrated for a while that there is only on data port. I have a USB stick with music and I plug in my phone for android auto and it was annoying to constantly switch between them.
I had read that splitters don't work but I ordered the one below and tried it tonight and it works! You can only use one at a time but at least I'm not constantly plugging and unplugging.
Let me know if you have a better solution and I hope this helps. I'm sure there are other brands with a similar product.
USB 3.0 Switch Selector, Bi-Directional USB Switch 2 in 1 Out / 1 in 2 Out, YINNCEEN USB Switcher Adapter for Keyboard Mouse Scanner Printer, USB KVM Switch Compatible with Mac/Windows/Linux
USB switch on amazon