How do I sync my music and video from iTunes to new iPhone 6?
Its simple. 


Open iTunes. 
Connect the iOS device to your computer using the
included USB cable.





After clicking on your iOS device, tabs appear on the left side of the iTunes window under Settings.
You can turn on syncing for Music, Movies, TV Shows, Podcasts, Books, Audiobooks, Tones, Photos, and Info. To turn on syncing, click the content type from the list under settings, then click the box next to Sync [content type]. If there's a check in the box already, syncing is turned on for that tab. To turn off syncing, uncheck the box.





Click the Sync button in the lower-right corner of the screen to sync your content. Only the information in the content list you've enabled syncing for will sync to your computer. If you made any changes to any of the settings, first click the apply button.