RADIO OFF, noisy speakers when headlight on....

Hi everybody

well my post, as nearly everybody, is for a problem who need help to resolve
I am from south of france
I have a RR L322 03 TD6
i can not switch on the radio anymore, and when i turn on the headlight, the speakers are a little noisy, nothing when lights off

I take off the battery, the fuse
but nothing

any advise?

thanks
Sophie

sounds like a bad earth to me, if the radio is not getting a good earth it wont work. and if the speakers are connected to a bad earth through the amp and is getting a tad bit of power the noise of the alternation spinning will come through the speakers.