I dont know what the radio station is but have you tried...
Clearing your cache or
Deleting the DLC and redownloading it or
Recovering your gamertag
Retail No DLC 100%: 18
Retail DLC 100%: 15
Latest 100%: Bioshock Infinite
"It is an undeniable and may I say fundamental quality of man that when faced with extinction..."
"Every alternative is preferable"