hi craig, i,ve not had to change the fm setting once. but i have found the dab radio signal did drop out when driving on the m6 near to penrith, but apart from that its works fine. i,ve done the same set up in my wifes fabia vrs with the pure highway hidden in the glove box without any problems, must admit though since planet rock started the wife as turned into abit of a rocker.....