I have been listening to a USB 2 (I think, older) flash drive on my Acura for years. I bought a USB-C flash drive and they were so inexpensive, I bought the 64 GB instead of the 32 GB. I copied my music to it, and the EQ EV did not recognize the USB-C drive. I searched around, don't remember where I found it, it may be on this site. The writer said Windows 10 will only format a drive that is larger than 32 GB as exFAT (extended FAT) format. The 2025 Equinox EV only reads FAT32 format. There is a free disk utility called Rufus that allows you to format a drive larger than 32GB as FAT32. I downloaded Rufus and you don't install it, it is an executable when it downloads to your download folder, so you execute it from there. I formated my 64 gb usb-c flash drive as FAT32, copied my music to the drive, and IT WORKS! I am not sure how to really operate it yet, I have 4 playlists on the drive, not sure if I can play random tunes within a playlist, but now that I can play a tune, I will experiment.
I formated my 64 GB USB-C drive as NTFS, and that works also.