IF you go to googel page and type in (pdf) WKC 5300 RdS GB (Brt) - Elektroda you will find the manul for that radio. i was just reading it , down load it, its free, it will tell you how to enter and save the codes , there is one or two things that your not doing ,you have to put it into expert mode first. its all on page 22, good luck
g, August 2014