if you take the power away from the radio is any way, ie take the power leads off the battery, the radio will ask for codes,  its a anti theft thing, if you have the radio manual it should have the codes, or if you go to the web site,, www,decodemyradio.co.uk  you might get them there , but you might have to  pay for them,,
                 k
                
 May 2012