WMRP-LP (104.7 FM), branded Retro 104.7 is an oldies formatted broadcast radio station licensed to Mundy Township, Michigan, serving the Mundy Township/Grand Blanc area.

WMRP-LP is owned and operated by SWC Concerts, Inc. WMRP-LP went on the air in March 2008, but its call sign dates back to 1946, when the now WWCK, used it as part of its MOR format and as a broadcast "arm" of the United Methodist Church, from which the station gets its call sign meaning.

In 1964, WMRP would spawn an FM station, known as WMRP-FM, which today is WWCK-FM.

On November 18, 2023, it switched to an oldies format with music from the 1960s to the 1980s.

This article about a radio station in Michigan is a stub.