Just discovered something cool. In my D3 I don't have the sat nave so there is a little cubby at the top of the dash, and a little rubber based ledge in front of it.

I have discovered that me new iPad in it's Apple sleeve sits perfectly on it's side it's landscape mode on this ledge, the rubber base stops it sliding around and it leans back at a nice angle with the open rubber cover lying back on the top of the dash so it doesn't move at all.

I then plug in the aux Jack and I have a full large screen entertainment centre I can pick up and take with me when I go.