This tutorial required a jailbroken idevice, You need to jailbreak your device before continuing with this tutorial. Click here to jailbreak your device

Requirements

  1. Jailbroken device
  2. Cydia installed 

Steps

- Open Cydia, go to 'Sources', hit edit then add this source  : http://beta.unlimapps.com/

- Search Cydia and install :

Youtube ++ : Add new features for your IOS Youtube APP such as the ability to download any video.

UnlimTones : This APP allows you to search for ringtones or create new ringtones. 

- Open your Youtube application, Search for any song you need to set it as your ringtone, while playing the video you will see a download button down, hit download and choose to download it as Audio format . After download finished hit the download Arrow to open the download page, hit option to export your downloaded song to the ipod.

if you got some errors while exporting media, make sure the name and description have no spaces. 

- Open unlimtones app, hit the blue choice 'Make Ringtone', choose ipod then your downloaded song, modify start and end points, finaly save it . 

Go to your device settings sound and set it as a ringtone . 

Youtube Tutorial