(IT IS NOT NECESSARY TO REMOVE THE SPEAKER.) © IF THIS IS A NEW SIREN BOX INSTALLATION, MOUNT THE STAINLESS STEEL BACKPLATE AND SPEAKER/SIREN ACCORDING TO INSTRUCTIONS PROVIDED WITH THAT UNIT. B) HANG THE STROBE UNIT ON THE LOWER FLANGE OF THE BACKPLATE BY SLIDING THE CLEAR PLASTIC WIRING PROTECTOR INTO THE LEFT (OUTER) SLOT OF THE BACKPLATE’S LOWER FLANGE. NOTE THAT THE END WITH THE LOOSE WIRES IS TOWARD YOU AND “UP”. INSURE THAT THE WIRE SLIDE HAS MOVED ALL THE WAY BACK TO THE WALL. C) CON