Have changed battery on 2001 20V Ts 1.8, and need radio code. But the radio is not displaying the word SAFE when I turn it on. Is there a simple solution for this ? Also Has anyone tried the internet retrieval sites for getting the radio code - I've got the Serial number, but don't want to do it just yet in case the radio is OTT. SOOOOOO, Is there a reason why it isn't displaying the word SAFE ?