great info, i guess mines is a am antennaif you entend the antenna wire to a length of 38 inches iirc. you will pick up range.
also make sure your antenna (if you have one mounted on the windshield) is pointing the right way.
fm antennas: vertical
am antennas: horizontal
dont think you can with thoes, its only with the wire antenna that comes out of the alarm brain. (usually non remote start alarm)yea that sums it up i do have the am antenna, how would i extend the wire