hi all,have the a8 with the delta cc radio fitted,now the car has recentlyhad a new battery fitted and needed to put the code in obviously,however the radio went into lock mode ie,the safe light on and 2 markers in the bottom right,i followed the instructions in my manual to delock it and also the instructions on audipages which is leave the key in ignition with the radio on for 1 hour then remove key and it should be delocked,however it isnt,anyone help me please as much as i love hearing the sound of the v8 4.2 engine i do miss my radio and it saves me talking to the wife lol.plz plz help asap as my left ear is hurting with her going on all the time many thanks gav