CompuStar alarm question

I’ve been trying to do some research on installing my CompuStar 2W900FM-AS remote start/alarm combo into my 1992 Integra RS. I’ve been able to pull a lot of info from various sources, the main one being very detailed was fcm of course. I guess this question is mostly directed to him, unless someone else knows the answer to it. Can the DEI 520T backup battery be used with the mentioned alarm if I don’t hook up any of the remote start options? I’ve seen it mentioned that the backup battery won’t work with the remote start, due to its 250mA draw. I’m not very familiar with installing alarms, but have pulled out plenty of alarms and done some other miscellanous wiring. I had this alarm installed in my FA5 by an alarm installed and then pulled it out myself when I got rid of it. Now I would like to reuse it in my DA because of its awesome range.

I’m sure I’ll have more questions as I go along, but this is my main concern at the moment.

Short answer, yes.
It can even be done when using remote start, a relay would be needed to switch power from. [through] the BB batt. to the cars batt., [bypassing the BB circuit]. 94