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

WNEW-NYC, Alison Steele, “The Nightbird”
WYEP-Pgh, Rosemary Welsh

WHB- Kansas City

Sid Mark’s Friday with Frank and Sunday with Sinatra, 1210 AM  and a stint on FM southeast PA from mid-50s and still going strong.

Nights throughout the 60's, I listened to to WABC out of NYC, via a transistor radio under the covers. The only records my parents played were Classical and Broadway Shows, which I didn't dislike but I much preferred the Beatles and Motown. In the late 60's, I discovered much less commercial FM stations out of NYC but don't recall their identities. 

There was also a guy in the neighborhood who'd been a USN radio operator. He set up a low-powered station in his basement, from which his eldest son would broadcast entire albums-- a rarity at the time. 

The soundtrack for my freshman HS year in Guadalajara was provided by a Mexican station that played the hits popular at the time in the US. . 

In the early to mid 70's it was KMET out of L.A. They played a great variety of Rock and I rarely missed the Jimmy Witherspoon Blues Show, airing Sunday nights after Dr. Demento. 

Mid 70's, it was KTYD in Santa Barbara and the UCSB student radio station. The latter was "instrumental" in luring me into exploring Jazz. 
At the time, there was also  Jazz station in L.A. that leaned toward  slick, CTI-type material. They clarified for me what I didn't like (and still don't).

AM ABC...Cousin Bruce' and MCA the Good Guys...