I want to remove all songs from iPhone 5, have unchecked and synced but iTunes still says I have 5GB of audio!

Solution 1:

Assuming you're running the latest iOS (iOS6)

From the Home Screen, go to Settings > General > Usage

Wait while it loads your apps, then select music.

Then tap 'Edit' and delete your music.

Solution 2:

In my iPhone 5S I found…

1. In Settings → General → Usage → Manage Storage → Music…

   

2. Tap on Edit

   

3. Tap on the red icon next to All Music and it will show the Delete Button.

   

4. Tap on the button to delete all the music files from your device.

   

Solution 3:

If it helps, I was struggling with this too - then realised Podcasts are counted under music! Clear out your Podcasts in the same way as above, et voila!