Add LED To Compustar CM900S?

i have a compustar cm900s but didnt realize it was the model without the alarm. im not worried about my old truck being broke into or stolen, i really hope it doesnt happen though. i had another compustar unit that did have alarm but that unit 2 way remotes are no longer available, over 20 years old and gave me issues so i replaced it with a simple cm900s. i wish the led light was available on this model but it is not, therefore, is there a way to use some output from the cm900s that will set a relay on to send the small voltage flasher to the existing led when its "armed" but its not? maybe when i hit the lock it can trigger a latching relay from its lock wire and unlatch from the unlock wire. or maybe some other external option? thanks

If I'm not mistaken, most CM900-s units come with a RF Remote kit that includes an antenna that has LED lights that come on when the unit is in the "Locked" condition. Does your system have this? If you mount the antenna in a visible area of the windshield, these flashing LED are very noticeable. What is the current draw of the flashing LED light you want to add? Your main issue in adding the LED using a relay is it could have an impact on your vehicle battery causing it to go flat overnight. A relay wired correctly can eliminate this issue. Another option if the LED current draw is low enough and you had the OP-500 or ADS USB programming cable, you could assisgn an unused CM900-s POC to SV-18 GWA (Ground When Armed). This output can support a 250mA load. Soldering is fun!