Can anyone explain how to wire an AIU in two different scenarios: First, a MTH Fire House (30-9159) which seems to just require an activation signal such that a momentary button press or an App activation sets the Fire House in motion. Second, a MTH House on Fire (30-9155) seems to require constant current to operate the appearance of fire. I want to be able to operate both with the Premium App in Record and Playback mode. Thanks.
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