Hi guys

My switched 12 V on the radio harness is not working anymore , i found the radio 10Amp fuse (under the footwell ) was stuffed and i replaced it . Still no 12 V at ignition. I saw in the relais box in the Engine bay there is a spot called Radio Relais which is empty , the switched 12 V used to work so that can't be it .
Can anyone tell me where the switched 12 V for the radio goes , so i can check what is wrong ?

Thanks guys