Radio always switched off when ignition switched off. But last week, switched off ignition & radio kept going for about 5 sec then stopped. Now completely dead. Checked all fuses including one on the radio itself and all OK. Have removed radio and checked that there is power at the socket going into the radio - everything as it should be with power there when ignition on, and none when ignition off. Also the second power wire that holds memory etc is also OK. Have taken the radio to the bench and tried to power it up via off line battery - there seems to be a dull flash at the screen but it doesn't light up. Based on all this, I'm reckoning the radio is ****** - probably a reasonable assumption. But can they be repaired or do I just bite the bullet & replace. Any advice would be appreciated,