If you want to monetize your App and you purchase a Gold Station, you can do it by an AdMob Account.
If you already have an admob Account, you only need to put your Banner ID and your Interstitial ID in the configuration of your app.
Here you have two options, delete the Ads o change it with your own IDs. For this Tutorial we need to pick the change option.
See images below:
Now, if you dont have a admob Account and you are interested in monetize your App, you must created one. There are few steps:
First of all click in AdMob and follow the admob steps for complete the creation of the Account.
Inside the Admob Control panel, you can add a new App to monetize. You can can choose which platform you want to monetize. (You must create one app for Android an another one for iOS)
Now you have an Admob App, you can add an Ad Unit Block, we need one banner and one interstitial.
Choose Banner and fill the name of the Banner. Them copy the Unit ID provided by AdMob.
Choose Interstitial and fill the name. Them copy the Unit ID provided by AdMob.
You can access this Ids after, in the details of the AdMob app.
Finally you can add this IDs to your Apps4Radio App's, in every platform.