I have a set of 7 spoke Scion alloy wheels I took off my 2005 XB.I want to put them on my wifes' 2006 RS4.I have misplaced the origional lug nuts and I don't remember which type lug nut is used.Do they have a conical base or do they use a mag type with a washer ? So far Toyota has shown me 3 types of nuts (all different,both types) that they say are the ones. that If you have a comment or a part number it would be appreciated.Thanks in advance.