radio security code

will someone help..........i recently bought a mitsubishi es 2001
and the battery died on me............so i got a new battery..........now my radio wont play unless i have a security code which the place where i bought the car from failed to give me at time of purchase, to be quite frank i was unaware that the radio needed a code to play...........can someone tell me or help me because the manufact is trying to make me pay to get the code which is ridiculous since i wasn't supplied with one

you should have a card in your owners manual packet that has one...and oh yeah ...SEARCH...

go to www.mitsubishi-forum.com and PM mittech. he works at a dealership and will get you the code for free