tmbrown97
Senior Member
It really depends on where the wire from the switch goes to; if you can completely disconnect it from the transformer so there's no current going through it, then you can certainly hook that up to a zone on the M1. As for having the M1 ring the doorbell, that'd be accomplished via a simple relay hooked up where the button used to be (I'm talking in regards to the circuit wiring, not physical location).