To unlink iHeartRadio with Alexa:
- Visit the Alexa app on your mobile device
- Tap on the Menu (More) button
- Tap on Settings > Music and Podcasts
- Under Services section find and tap on iHeartRadio
- Tap on the Settings button
- At the bottom of the Skills Settings page tap on the Disable Skill button.
For further Amazon Alexa support visit the Amazon Support Center.