if u've seen the new Mazda 6 & 3 in person and not particularly fond of their stock stereo performance don't despair. well despite its challenging appearance due to a more cohesive design in the interior (orignal reason for dumping 1DIN or 2DIN after market stereo's in the first place). A few daring individuals have actually managed to pull-apart the stock stereo and speakers. i'm just going to post the link because its just too many pictures to deal with. enjoy!

BTW, to the Mazda 6 owners out there: can u post your review of the STOCK stereo.
Stereo HU removal.