I may have located a set of S4 alloys, will see them at weekend. But one thing I'm unsure about is whether they have the correct centre badge. The audi badge in the very centre is silver with a small black rim, while others I've seen on what I thought were official pics are dark grey with no rim. I prefer the dark grey, can I just pop out the old logos and put in some dark grey ones? If so where can I get them? There are loads on ebay, in various sizes, some sticky, some may snap in? What would I need? Unless I can buy all new centre caps including the correct badge?