Where can I get a radio code for my Ford Focus?

Can you tell me where I can get the radio code for my 2010 model Ford Focus?

Ford Focus

I have a 2009 Ford Focus and the audio unit won't turn on. It recently had a flat battery and since then it won't turn on. I have put a new battery on and checked the fuses and none are blown?

How do I unlock a Ford radio?

How do I remove the LOCK13 message on my Ford radio?

Ford Focus (2008 - 2011)

Much improved 2004 Focus. Great to drive. Comfortable and well laid-out interior. Wide range of engines. Low emission ECOnetic versions offer 55mpg +.