Chromecast built-in works well and lets you listen to Spotify, Pandora, Google Play Music, TuneIn and Podcasts via iTunes.

I prefer chromecast especially for Pandora and Google Play Music as you get to see the album art on screen

If you care about receiving Pandora which we can, and occasionally, do on the older GRI-IRD4400M, it's not built in, or even supported by configuring from the Grace Portal