Switching from usb to sd problem

Is here a way to go from the SD card to the usb without shutting off the music .there has to be a way .you eject one but it cuts off the music playing…both usb and sd card are in so I would assume you could go in between both with ease but that’s not the case

Don’t eject, just change source.

jep, eject is only needed if you want to physical swap the card or usb-stick. to change the source just hold view and choose source

Everytime I try to change source it just boots me out