The non-nav XFire radio says "Infinity" but is really a re-branded Becker - take it out and the labels on the side (and the Becker optical CD changer port on the back) make things pretty obvious. I think the M/B radio is also a Becker. Since the wiring harness is nearly, with the exception of a few pins, identical between many German radios - hence why Blaupunkt radios are also plug-n-play - I suspect things will work.

They're definitely not the same stereo though, as the M/B unit has more features like hands-free phone / SOS. You might have to swap some wires (just like how one wire needs to be cut for some Blaupunkts to come out of phone mode).