Someone have CAN-bus decode box B200 (mercedes) mine is weird!

Well, I have the unit from last February/2015, and all works fine, allmost, I have a CAN-bus decode box B200, but the point is, if in the factory set up, I choose these model on can-bus value, the wheel controls not works, but if I let the option "no can bux box" they works fine... Can't these Box not read nothing more from my car it is not wheel controls and reverse light? Now I am on KGL5 2.55...

thanks!

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