Car radio code

Mike New member Username: Mp57 Post Number: 1 Registered: Jan-13	Posted on Tuesday, January 15, 2013 - 23:52 GMT I received a radio that was in my son's Chevrolet avalanche and installed it in my silverado and it it indicates "locked". The serial number for the radio is 4339. Can anyone assist?
opelop Silver Member Username: Opelop Post Number: 340 Registered: Sep-12	Posted on Wednesday, January 16, 2013 - 05:09 GMT Mike New member Username: Mp57 all numbers from radio please contakt me http://forum.kody-radio.pl