I had my tires replaced and the idiots stripped the bolts holding the center cap and said nothing to me. 2 days later I was missing a center cap :'( . Went back to them and they denied it, so I told the guy it would be the last time I would spend a 1000$ for tires at his shop!! (pissed) Went to mazda to see how much for a new one and I almost fell over!! (boom04) Anyway I looked everywhere for the center cap. On ebay, Racing hearts web site and every other place I could think of and found nothing. I believe they made those wheels especially for the MP3 so mazda is probably the only place to get them. Good luck (canada)