The iTunes Affiliate Code allows you to be paid for iTunes purchases made via your radio website.
Here's how to retrieve your affiliate code and enter it onto your website.
To get started, you'll need to create an account on the Apple Services Performance Partners Program page. You can do so HERE.
Click on "Apply" below "Other partners.
Next, you will have to choose the Other Partners option :
To the question "Are you willing to work on a CPA-only basis?*, answer "Yes" and click on "Next".
Next, you will be asked. to fill some details about your project. This information will be reviewed by Apple in order to accept your registration.
If you application is accepted, you should receive an email in the next few days.
Now all you have to do is copy your Affiliate Token.
Once you've got hold of your Affiliate ID, head over to your website's admin panel: Parameters > Configuration > General Settings > External APIs
Insert your Affiliate Token in the field: iTunes Affiliate Code.
Don't forget to fill in your bank details by logging into your Affiliate account as indicated in the email.