AUX input options?

[cantabrigienne]

I have a 2021 Tahoe and am trying to figure out how to push audio through the car stereo, not using a phone. Is this possible? I know there's no AUX port, but i've seen people recommend the 3.5mm/USB-C cable adapters - I tried this but the Tahoe doesn't see the device and there's no way to select an audio input, from what I can find. I've also tried a Bluetooth dongle transmitter, but I can't get the Tahoe to pair to anything that's not a phone - the only settings under bluetooth are "add phone" and then you have to select MyChevrolet on the phone to pair. Has anyone had any luck doing this another way? My goal is to get my kids' Yoto device hooked up to the car speakers, so they can control the music and audiobooks from the back seat, and we can all listen. I don't want my phone to be driving the audio. This is simple and straightforward in every other vehicle I've ever driven, but I can't seem to find any way to select audio on this Tahoe, other than from a smartphone...just looking for a way to play any basic audio output (walkman, CD player, Yoto, etc.)