radios

I'm looking to buy an Eonon GA5163 HU. There site says it's compatible for the Mazda 3 2010-2012. My question is there any differences in the wiring from the 2012 to the 2013. I have non Bose 2013 Mazda 3 Hatchback (Skyactiv)

Does any one know if the plugs for the infotainment and the standard radio are the same? I just curious if re-wiring the plug would allow a radio swap. Mazda being Mazda.. there's no way it could be that simple.

So it appears that even though my OEM radio in my 2012 3 has the SAT button, it apparently is not SAT capable. Though it looks the same on the outside as others, it is what is actually behind the front panel that makes it a SAT capable radio. Therefore, just buying the SAT receiver and install...