Thank you for accepting me into the group. This is my first post. I own a 2002 L322 Vogue. I recently replaced the original audio system with a Pioneer system. By deactivating the head unit of the original system I lost some not so important functionalities: central door locking, analogue clock... But the most important thing is that every time I disconnect and connect the battery I have to reconnect the old central unit to enter the ignition / unlock code and remount the new HiFi unit. Is there any possibility to deactivate the ignition code? Thank you very much in advance for your answers and please accept my apologies if this matter has already been treated in a previous post.