Couldn't figure out why my radar detector went off nonstop in my new M5. Got together with one of the geniuses at the dealership. We found out that the laser beam that detects gesture control sets of the detector. I don't use the gesture control myself so I put a piece of black electrical tape over the gesture control eye. (Located in the overhead console) Just feel around with three fingers until you set off your detector when moved out of the way.