Thanks for that information Neil. It all worked out well, as now I have a complete set of correct radio knobs on the car. One of the dials behind the knobs on my car was split, but the white plastic piece was in good shape. Funny thing though, the white piece on my car looked slightly different to the one I got at the swap meet. The new piece had an "extenstion" for lack of a better word which the other one didn't.