How to unlock my radio (5000 rds) lock 13 M274131

Your code is 2111

This can be unlocked by entering the correct code! See gumtree.com for code and instructions, cheaper than main dealer!

Take that code and your car's registration to your local Ford dealer's parts department. They can look up the unlock code for you. You will need to input the code to unlock your radio. Write the code down in your owners manual, so that next time this happens [any time the battery is dead or disconnected] you will have to code to unlock the radio.
Charlie