2005 Mazda 3 Aux Input - Will this work?

Hey so I know some my options are purchasing a sylfex aux mod, GROM aux input, getting a new head unit or using a fm transmitter. However, I came across this on eBay.

http://www.ebay.ca/itm/USB-AUX-In-Ad...ZXcMwd&vxp=mtr

Says it will work on a Mazda 3, sorta looks like a GROM aux input adapter. Anyone tried it? Thinking of buying it asap.

Bought, tested, works. Good thing I'm updating this post so someone else who has a question on this will have an answer.

EDIT: Tested On Mazda 3 2005 with Tape/MD Button