WTNR (107.3 FM, "Thunder 107.3") is a radio station licensed to Greenville, Michigan. Owned by Cumulus Media, the station broadcasts a country music format targeting Grand Rapids. History The station was first assigned the call sign WPLB-FM in 1962 and was originally licensed to Greenville, Michigan. It was sister station to WPLB (AM) (1060 and later 1380). The station became oldies-formatted on November 15, 1989 and the call sign was changed to WODJ. The WPLB-FM call sign was subsequently moved to 106.3 FM in Lakeview, Michigan (the AM and FM are now known as WGLM). WODJ WPLB-FM became WODJ, an oldies station targeting the Grand Rapids market, in 1989, and was an immediate success, reaching number one in the 12+ Arbitron ratings for Grand Rapids the following year. The station's success was built on its visibility at community events, such as the Grand Center Boat Show, which took place at the Grand Center in downtown Grand Rapids. By 2000, however, the station was struggling to make the top ten in 12+ ratings. Oldies 107.3 also featured the syndicated Dick Clark's Rock, Roll & Remember, which aired on Sunday afternoons. WKLQ On October 11, 2004, WODJ and the oldies format was replaced by Active rock station WKLQ, which had been replaced by country music station WTNR after 20 years on 94.5 FM. The WODJ calls were most recently used by Citadel Broadcasting on talk-radio station 1490 AM in Whitehall, Michigan which was also replaced by the WKLQ call sign in 2009. The call sign is now held by Mentor Partners of Big Rapids, Michigan, on a construction permit for a new AM station for 1590 kHz. Shortly before KLQ's move to 107.3, they hired Justice and Jim for mornings. In summer 2005, the duo created controversy when they announced on the air that they were going to drown a dog. The announcement persuaded several listeners to call 911. A day later, they announced that it was only a stunt. On July 19, 2006, Justice and Jim were fired and replaced by The Opie and Anthony Show. WKLQ launched Grey & Kluck mornings featuring Grand Rapids market veteran Michael Grey and Warren Kluck on July 17, 2008. Kluck spent three years previously doing morning drive at WRKR-FM in Kalamazoo, MI. Repeater station WKOQ (92.5 FM) signed on the air on August 15, 2005; the WODJ call sign that was abandoned by WKLQ