CX-5 2012 aftermarket head unit?

Mazda CX-5 Sport Nav auto 175
Has anyone successfully fitted one of the Chinese radios into their BOSE CX-5? I bought what looks like a good unit, supposed to connect to Bose, but it came without the right cables and the canbus decoder, so I'm chasing them up. But the unit has RCA outputs, and the car Bose lead has a white multiplug, so I'm mystified.

If you've achieve this I'd be really interested, also to know if you got the commander (joystick) functions as well.