I have just brought a 2nd hand Mazda 5 MPV with a inbuilt Sat Nav system. When I brought the car it did not have the Sat Nav DVD I am trying to find where/how I can get hold of the DVD on a 55 plate 2006 model.

I have spoken to the dealership and they have quoted me £220 ex VAT which I think is far to expensive for a CD/DVD when I paid extra to have the inbuilt system in the car. Can anyone help?