Okay, so, I got it working! I love the sound of that 2901-9806 in march time! I’[m also getting the required resistors today. I may also be able to pick up some 12 volt batteries. Are any 12 volt batteries okay, or does it have to be a certain company? Also, how to I wire up a smoke? (Two wire, four wire, etc.) I doubt smokes are wired like pull stations… Thanks for the help so far!