Fitted a Blaupunkt head unit with a steering wheel interface, but i have a strange problem,the wheel controls work fine with the ignition on or off until i start the car then they stop working!.I've tried the turning the stereo off then starting ,a new ignition feed,a new interface and even a new stereo (different type)and still no joy, what am i missing?, no feeds or earths seem to be dropping out and its doing my head in,PLEASE any ideas?.
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