2008 mustang, clifford x-50

I have a 2008 ford mustang GT

I am installing a Clifford X-50 alarm and I seem to be having one last issue before getting this working fully.

My relay will turn my supervision lights on during disarm and I can hear the relay click, but they will not turn off when I arm.

If I understand relays, (not my specialty) the relay switches from 87a to 87 (or visa versa) when activated. How do I get it to go from 87 back to 87a.

I believe this is my problem.

Does it require some kind of other component to do this?

Thanks for any help

Correct except I have the polarity set to (+) I think because it seemed to work backwards.

If I hit my arm button on the stock keyfob all light go out except for supervision light. then if I hit arm on new keyfob light goes out.

If I only hit new keyfob to arm, nothing goes out and lights will dim after about 25 seconds but shock sensor will only work on alarm. But factory alarm is not set.

If I arm car keyfob first then new keyfob factory alarm all seems to work along with new alarm funtions.