Renault / Phillips car CD radio 22DC481/72

[clive2702]

First time user of forum, can anyone help please. I need to reinstall original CD Radio unit before I can sell my car. I have the 4 digit code but not the owners handbook to tell me how to enter the code when it's all wired up. Any help would be really appreciated. I have spent ages trying to find handbook on this site but no joy. Many thanks.