My name is Abdelrahman Sokar i have an opel corsa c 2001 the radio is on the safe mode cuz i changed the battery and i don't have the code i tried 3 time from the 10 attempts and now it's stuck on 7 safe and i can not now enter any other code I need to know how to solve this problem and if someone can provide the code this would be great Serial Number: GM020317928190 7649200321