HI guys thanks for all your previos replys. i have just bought a D40 2012 now i was doing something and removed the batt. treminal so the radio is show enter pin. Ok i went to the dealer they pulled off the dash got info from the sticker on the radio put the info into the computer got a pin and it was wrong. they tried then getting the info from the radio screen regarding serial no.and part no. and build date of radio. we get a different pin still no good. tried the same serial and part no.but changed the date around like they do in europe where they quote the month first then day then year. got a different pin still no good. we dont know what to do. has anybody herd of this problem