how to find out where the fuses are radio, nissan,primera 1.8 2000 ?

i have a nissan primera yr 2000.1.8 when the radio is on there is no imfo which station i have as it does show in the window plus i turned the radio off and now it will not go on and i dont know where the fuses are to see if that is the course and im told that nissan do not let one put there own radio,s in as they are all in one with the facia can anyone help please

dave moore
November 2009