WXXJ (also known as X-102.9) is a modern rock radio station in the Jacksonville, Florida  market (the No. 46 market in the Arbitron ratings), broadcasting at 102.9 FM. It is owned by Atlanta-based Cox Radio, Inc., which also owns Jacksonville stations WAPE-FM, WJGL, WOKV FM/AM, & WFYV Rock 105, classic rock WOKV-AM(news-talk is the No. 1-rated station in the market.

The modern rock format went on air on Feb. 25, 2009 at 5:55 a.m. The first song on the new X-102.9 was Chop Suey by System of a Down because of the opening lyrics, wake up. The last song heard on 102.9 The Point was the first song played nine years earlier, Don't You Forget About Me by Simple Minds. The station was launched to compete with heritage modern rock station WPLA. X102-9 was different than Planet Radio because it played a wider variety, focused on newer music, and did not have a chatty morning show.

The station quickly rose in the ratings, beating rival WPLA]. On August 4, 2010, WPLA dropped its longtime modern rock format in favor of classic hits. This left WXXJ as the only modern rock station in Jacksonville.

Jacksonville's 102.9 first went on air in 1965, when it was a sister station to WIVY-AM (1050), both owned by New York announcer Ed Oberle. In 1971, Oberle sold the pair to another New York announcer, Tom Kirby, who converted WIVY-FM to album-oriented rock (AOR). Kirby sold it to Infinity Radio in 1976, who changed it to Top-40 Y-103. Cox purchased the station in 1997 and changed its calls to WMXQ (Mix 103), switching the format to hot adult contemporary. Cox made another switch to 1980s music in 2000 and more recently to modern rock as WXXJ on April 7, 2009. [1]