What were the radio stations of your youth that helped you on your music/audio journey?

I am older so my radio stations of influence were in their prime during the British invasion and many, many American singers and groups.  
The stations I listen to the most were WLS out of Chicago, KIOA out of Des Moines, KAAY out of Little Rock, Arkansas and KOMA  out of Oklahama.  When I was in the Air Froce I had a few stations near the main base I was stationed at outside of Rapid City, S.D.  
Of course systems and better and better systems and FM became the dominate source for broadcast/online music.  I did learn much of what I liked and eventually purchased through early radio listening.
I still listen to radio mainly for Jazz stations and NPR news. 

BRT 1 , BRT 2 , Radio 21 ( Belgian radio stations) and Veronica ( a Dutch one).
Beaker Street with Clyde Clifford.

Was born and raised in Iowa. HUGE plastic AM radio with the big carbon battery.

From the wiki:

he first underground music program broadcast regularly on a commercial AM radio station in the central US. The station’s signal carried far and wide. In early 1967 Beaker Street was a staple for adherents to the burgeoning underground communities in the upper Mid-West especially in Des Moines, Iowa, where it was the only access to Dr. Demento and Firesign Theatre.

Lasted until 1972. I was 10.