YouTube music in media library and Custom Sonos Card

Hi All - I’m very new to HA so I’m sorry if this is in the wrong place. I recently added the YouTube music integration and the custom sonos card. When I select “browse media” within the sonos card, the YouTube music media doesn’t come up as an option.

When I go to Media on the left panel, I have the option of selecting YouTube music on the bottom right where the various music libraries, charts, etc. appear; but if I select a room/speaker that I have configured, the YouTube music media options disappear and I’m left with just local media options.

How can I get YouTube music as a media source within the custom Sonos card?

Thanks so much for the advice!