Originally Posted by
zip439
I quote from the Chrysler Student reference book "The Vehicle Theft Alarm system sounds an alarm siren, flashes exterior lamps and disables the ignition system when the alarm is triggered." I feel quite certain a corroded corrupted board on the siren can trigger the anti theft system.
Your quote has nothing to do with the matter at hand, this car has diodes to prevent the back feed of erroneous currents and with the alarm wiring similar to other models of Mercedes I am sure that if a diode was needed it would be there.
The siren is set of by the security system and is not likely to set of the security system itself.
I'm with the pizzaguy on this matter.