Do you have any of these trim panels for the stereo. It's the lower circle plastic part only.
Part number F151-66-BC0.

Adrian,
Unfortunately I don't sell items in this price range. If it costs less than $100 from Mazda I would be the wrong guy to call. Generally speaking. There are, as you know some excellent Mazda dealer vendors on this forum, I would suggest checking with them.
Paul.