Yikes! Sorry to hear the issues.
Mine went flawlessly but I bought mine from carsystems and had their support.
They wrote special code for my M buttons so I can use them as "multifunction" buttons.
So my M1 button operates my heated steering wheel option and the steering wheel vibrates once for on and twice for off. Kind of nice.
My M2 button operates my recirculating option like my old steering wheel had. Otherwise all other buttons work as they should.
I will point out though that the first module received from them was incorrect and had to swap it for another one due to the can bus.
I had to use Skype app and contacted carsystems support directly and their engineer had made me custom code that was updatable by their usb dongle they sent me.
Otherwise everything went well.
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