I'm a new member with a question regarding my 2003 325 iT. I have purchased an OEM alarm and will be installing it shortly. I am looking for detailed instructions on how to remove the inner trim panel from the passenger side of the luggage area. The installation of the alarm in a wagon is different than a sedan or coupe and the tilt sensor has to be installed in behind the right rear speaker. Any links to a good DIY? This (BMW 325xiT alarm tilt sensor install) is the only one I've seen but there must be an easier way.