Punch wrote in message
. ..
goto your alarm panel remove it completely, look for the siren in a duct
somewhere remove it, go down stairs to that electric locked box, drill out
the lock, cut the wires remove the box and whatever's inside.

now you should just have the wire going to your phone and the fuse panel,
remove the phone wires, follow them to the demarq jack and cut them off.

turn off the main power to the fuse panel trace the wires into it from the
locked box and remove them.

And as for that locked box... Forget drilling, most I've seen can be
pried open with little difficulty.

--S