KSYY

KSYY "105.3 The Spy" was an Alternative Rock station licensed to Kingfisher, Oklahoma circa 2003.  The frequency is currently Sports-formatted KINB "105.3 The Pro" which runs the national feed of CBS Sports Radio.
Meanwhile, "The Spy" went to live online at thespyfm.com and later teamed up with Oklahoma State's KOSU to provide much of their late night and early morning programming.

KSZL

1230 AM KSZL played Country music in Barstow, California back in 1989 when this sticker was current.  More recently they were an Air America affiliate before that network's bancruptcy.  KSZL now carries a News/Talk format.

Radio Sticker of the Day Mailbag - CHTT

Yesterday my post office box was filled with the wonderful sight of a package of radio stickers and other goodies from Dan in British Columbia.  Thanks again my friend!

Along with the stickers were these fantastic postage stamps featuring Canadian recording artists.  The Guess Who and recent Rock and Roll Hall of Fame inductees Rush have had major success in the US and get regular rotation on Classic Rock stations.  The Tragically Hip are tragically unknown in the States except in border cities like Detroit and Buffalo while Beau Dommage's popularity was mainly centered in Quebec.  As a postal employee, a former stamp collector, a fan of rock and roll and all things Canadian, I love that Canada Post has decided to hono(u)r these deserving bands.

A brand new sticker from a station that surely plays at least three of the four bands pictured above is CHTT "103.1 Jack FM" licensed to Victoria, British Columbia.  They've carried the Adult Hits "Jack FM" format since 2004.

KTAI

KTAI is a student-run station from Texas A&M University-Kingsville.  After beginning as a closed-circuit radio broadcast in 1969, KTAI upgraded to 91.1 FM a year later. 

WVMT

AM 620 WVMT is a News/Talk station licensed to Burlington, Vermont.  They are the oldest station in the state having gone on the air in 1922.

KTAC

A window sticker from KTAC, a defunct Top-40 station in (K) TAComa, Washington.  850 AM is currently a Sports station KHHO.

KTAL

"98 Rocks" KTAL (K Texas Arkansas Louisiana) is a Classic Rock station licensed to Texarkana, Texas with studios in Shreveport, Louisiana.

WJFX

WJFX "Hot 107.9" is a Top-40 station licensed to New Haven, Indiana near Ft. Wayne.  In 2012 "Hot 107.9" hired Andrea Russett, a 16-year-old high school student to be a weekend DJ.  Russett is known for the millions of views of her YouTube videos and has over 300,000 Twitter followers.

WJGL

WJGL "96.9 The Eagle" is a Classic Hits station in Jacksonville, Florida.

WJGS

WJGS played Middle-of-the-Road music from their beginnings in 1961 until 1988.  They were licensed to Houghton Lake, Michigan and the call letters stood for the original station owners (W) Jacob and Garnett Sparks.  98.5 FM is currently Classic Hits WUPS now licensed to Harrison, MI.

WJHM

"102 Jamz" is a Rhythmic CHR station in Daytona Beach, Florida.  Formerly WORZ, a Classic Rock outlet known as "Z102 FM," the station became WJHM in early 1988 and has carried an Urban/CHR format ever since.

WJIA

88.5 FM WJIA is a Contemporary Christian station licensed to Guntersville, Alabama.  I can find no evidence that they still simulcast at 90.3 FM.  It's unclear exactly why the "J" in Jesus is a fish hook but it likely refers to this.

WJIB

WJIB is an Adult Standards station licensed to Cambridge, Massachusetts.  "The Memories Station" is commercial-free and relies on listener donations to stay on the air.  AM 740 plays easy listening music from the last 100 years ranging from 1800s waltzes to recent lite pop.  They also occasionally air the intriguingly titled "Let's Talk About Radio" program on Sundays.  The call letters are named after a ship's sail known as a "jib" and explains the nautically-themed sticker.

WJIS / The Joy FM Network

"88.1 The Joy FM" is a Christian Adult Contemporary station in Bradenton, Florida.  WJIS is one of more than a dozen stations and translators in the Joy FM Network based in Sarasota, FL.

WAQV - Crystal River, Florida

WJIV

101.9 FM WJIV is a Christian station licensed to Cherry Valley, New York.

WJJB / WRED

"The Big JAB" is an AM/FM combo in southern Maine that carries a Sports format.  96.3 FM WJJB is licensed to Gray, ME and 1440 AM WRED is licensed to Westbrook, ME.

WJJK

WJJK was a Country music station in Eau Claire, Wisconsin.  1400 AM currently carries a Sports format as WBIZ.

WJJL

1440 AM WJJL (W John J Laux--the original owner) is an Oldies outlet in Niagara Falls, New York.  The locally owned and operated station first went on the air in 1947 and boasts having had the first two-way telephone talk show, Party Line in the early 1950s.

WJJO

WJJO is an Active Rock station in Madison, Wisconsin.  They are widely known to be one of the hardest rock stations in the country and don't "daypart" their music programming (i.e. playing heavier rock only at night.)  "94.1 JJO" is licensed to Watertown, WI.

WJJQ

WJJQ FM is a Full Service station that plays Lite Adult Contemporary music.  The AM half is an ESPN Radio affiliate.  Both are licensed to the northern Wisconsin city of Tomahawk.