The radio I have in my 2004 C-Max is the standard CD one and it measures 230 x 120 mm, The double din standard as far as I can tell is 180 x 100 which indicates one would fit with the correct face plate. There are also quite a few other posts on this forum with photo's showing both a single din radio and a single din amp in place of the CD player, So I can't see why one wouldn't fit, That's partly why I'm trying to gather a little real information from people who have actually fitted one or failed to fit one.