i have an older el camino with a "vision" alarm sys. actuators were added for the door lock. im trying to add a relay to activated my dome light for however long the momentary 12v output is for, whenever the alarm is deactivated and the doors unlock. can any one help me. played and researched for a while, pretty frustrated.
a wire that turns on the dome lights when then alarm is deactivated. whoever installed the alarm may not have used it. some shops don't so they can get it in faster. and some charge to do that.