Hi, I want to convert my single din Audi Radio to a navigation unit in my Audi A4 B7 saloon. I understand I will need a new cage to house the navigation unit, however will I also need a new climate control unit? or does my existing CC unit just drop down to accommodate the double DIN unit.
I am after a complete set up utlisiing my existing MFSW controls and bluetooth. I am in the process of looking for units as we speak. Does anyone know what I need exactly and how easy it is to fit.

Thanks