Just the other day my95sti central locking stopped working at the same time i noticed that both interior lights stopped as well (centre & both reading lights/head lining). At first it was my radio, i removed it and noticed the permanent live wire (blue/red stripe had disconnected. I reconnected it but still the radio never worked. Done a quick check on fuses at footwell, all ok. Check radio fuse ok. Check permanent live with bulb tester no light, checked radio igintion positive wire (yellow/red stripe) ign on, sometimes the bulb tester would light up & sometimes it wouldnt. Are the wires from the radio connect in anyway to the c/l or interior light. My clifford when armed now beeps 3 times telling me theres are problem somewhere? What do i check next, found it difficult to trace radio wires back as they dissapear into the dash.

 

try checking a 15a fuse in the fusebox under the bonnet cant remember which one but theres only a couple

 

Tried that there all ok.
Gonna have to try to trace the radio wires back some how.