Edit: Solution is Zotify, use a burner account for this type of use (playing songs on speakers, quality is fine at 160kbps). It's a bit hard to setup and use, but nothing major. SpotifyDown is the next best option Imo, cannot download full playlists but quality is good. (Not using audio from YouTube videos) Most other options have their quirks. Also, first time using Lemmy because of this sub, pretty good

Quality isn't an issue; I'm going on a road trip and don't want my music to be stuck to my phone. I have Spotify Premium too, but I would like my music on a USB Drive.

I've tried sites, but the one's that can download full playlists, download YouTube audio, and these aren't great (some songs have weird effects/cuts and shit and not the pure song)