Does anyone have an experience with BMW alarm in 330Ci converible? Today dealer installed (at least told that installed alarm kit and activate by reprograming OBC. According to dealer there is no volumetric and shock sensor for converible, tilt sensor only. But I liitle bit curious: I tried to swing my car very hard but armed alarm was not tripped. Hmm, I can easy remove the wheel with much less disturbance. Either tilt sensor doesn't work or...?