Have you solved the prolem? I have same issue, in my 2007 bmw 328i

What is your question?

My wiper control does not function, when I reset the battery - it will start to wipe but there is no control. Wheel controls does not work too, I have cruise control, radio volume control and hands free on a wheel. Also I noticed that fiber red light that is located inside the 'open trunk' button - goes off for a second and comes back on constantly, I can hear radio making a quick hiss noise when the light goes off. Does anybody know what it is?