91 Dynasty, N Yorker, Fifth Ave, Imperial

Has anyone connected a remote wireless alarm/lock-unlock system to a 1991 Dodge Dynasty, New Yorker, Fifth Avenue or Imperial and figured out what type of power lock system exists?  I have the factory wiring diagrams but am still a little confused, I think it may be a 3 wire positive but the diagrams mention something about Polarity so I'm also questioning if it is a 5 wire reverse polarity.  Also, if you are wiring your alarm for a 2 step door unlock (drivers door only on first button press, all remaining doors on second button press) and the alarm has a wire to facilitate this with a relay, how would you wire the relay depending on what type of lock system exists?  Thanks for any help or guidance!bpoelp

Thanks for the advice tbirdman74. Y ou got me to thinking and I think I may have figured out a way to isolate the driver door lock motor with a second relay that disconnects it from the remaining lock motors at the same time that the 2 step unlock relay energizes the unlock motor on the driver door.  When the 2 step relay provides 12 V+ to the driver door motor, the extra relay simultaneously moves the normally closed contact (which provides continuity from the left front lock motor to all the others when the system is at rest) to the normally open contact during that brief pulse to just the driver door motor.  It looks like it may possibly work on paper and I'm about to put it to the test.  Thanks again for the reply as it helped me to plan before actually starting to tap into the factory system.bpoelp