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. 

jusam
"I grew up in Florida, so I used to surf the late night airwaves of pirate radio hundreds of miles away. Don't remember any of the call letters."

One of those might have been WMUM (Mother) in Lake Worth. Around 1970. First night I listened to them they played the just released "In The Wake Of Poseidon" in its entirety, no breaks. Awesome.
I was lucky to in the late 1960’s live within reception of the San Francisco stations. On AM were KYA and KEWB (it’s sister station in Los Angeles was KFWB). Then in 1967 Tom Donahue---one of the KYA disc jockeys and co-owner of Autumn Records, home of The Beau Brummels---launched the first "underground" FM Rock ’n Roll station in the U.S.A.---KMPX. The station was staffed by renegades (as opposed to the fast-talking "Key kids!" AM jockeys), the playlist not 45 RPM singles, but LP cuts, or whole LP sides, or even entire LP’s. When Sgt. Pepper was released they played the complete LP non-stop.

In 1968 (iirc) some problem developed between the station owner(s) and Donahue, who took his staff and relocated to KSAN radio, which continued the free-form programming style. A VERY influential station, copied all over the U.S.A.
I always enjoyed Lester the Nighfly, broadcasting from the Foot of Mt. Belzone.
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CFNY FM in Toronto... 

Mind you this before they were bought and then radically changed their programming to sound like every other radio station.

Great in the 70-80's timeline.