compustar cm600s with hyundai door locks

If I remember correctly, when you did the Factory Alarm disarm, it would also unlock the doors.  Here is the info from

Factory Alarm Disarm    Orange and Brown (double pulse)  both (-)   @ dash fuse box, white 24 pin plug (D), pins 16 & 22

Think I would try it this way first on your CM600-s unit.

If it only disarms the Factory Alarm system and does not unlock the doors, then switch this wire from the Sonata to

Here is a Pictorial on a 2011 Sonata :  https://www.the12volt.com/installbay/forum_posts.asp?tid=132478

The easy way is to use the door lock button in the drivers door as you exit the car.   

Here is how you do it with the R/S :

See DEI TechTip for their wiring suggestion  :  https://www.the12volt.com/installbay/file.asp?ID=1085

Correct.  The CM600-s Orange led with diode goes to the vehicle WHITE/ Orange and the other leg ( w/o diode ) goes to control the relay.  The relay allows the cut Brown wire to work normally through the "Normally Closed" pin 87a to 30 circuit and will momentarily open the Brown wire when it receives the CM600 Arm pulse.

Are you using the CM600-s Disarm output?  The Disarm output not only happens with an Unlock but also with a remote start.  On the 2011 Sonata in the Pictorial, the R/S's Disarm output was not used and the Unlock output was programmed for a double pulse, split and only connected to the vehicles' two "disarm" wires ( Brown & Orange ).  Did you test these two wires with a double pulse to see if the Factory Alarm disarmed and the doors unlocked?  The Factory Alarm does not get triggered with a remote start-up, so no need to "disarm" prior to a remote start.

As for the Rearm, you could check to see if the relay is getting triggered ( should feel / hear a click ).  Also ensure the diode is installed correctly with the band towards the R/S. 

As a test, disconnect the Compustar's Unlock wire from the car's Yellow unlock wire and see if an Unlock command still unlocks the doors ( via the Disarm pulse the Compustar sends out just prior to the Unlock pulse ).  If it does, then switch that Disarm connection from the Compustar's Disarm wire over to the Compustar's Unlock wire.

There are some differences between the CM600 and CM800.  Here is a link to the CM800 Install Guide :  http://techfeed.compustar.com/ft_controllers/manuals/CM800_Full_Install_V1.1_EN.pdf