Ravageroche

Thanks but I was hoping for more online solution as the dealers will I'm sure be expensive

Hi I was wondering if any one can help me. I have a 2006 C5 with colour display and a rt3 radio. When I bought it it didn't have the original disk for the sat nav and when you go to use sat nav it says insert cd. Does any one know firstly what the disk is called where could I get it or the software that's on it so I can burn it to a disk and be able to use the sat nav in the car. Thanks for any help that you can offer.