my 1986 325 radio needs codes

dose anyone know how or where i can get codes for the radio it has locked up and i dont know how to get the radio back on with out the codes please help :banghead: :banghead: :confused: :headshake

do you have your owners manual or service booklet? they are usually in one of them. . .

if you dont have it, you are better off putting in a new headunit anyway. something that can at least play cd's.