Xtra Am Birmingham UK Jingles by JustMattuk published on 2012-09-24T16:27:37Z Xtra AM Birmingham, UK. Groove Addicts. All Copyright remains with respected holder. Groove Addicts .Grooveworx. Xtra AM was a United Kingdom radio station which was on the air between 1989 and 1998. It was broadcast to much of Birmingham, Coventry and Warwickshire and was the 'oldies' station which took over the mediumwave frequencies of both BRMB and Mercia FM.