Is this a 5500 or a 6000. On a 5500 there is two switches . One for the drop door lock of the bill stacker on the side . Inside the machine above the bill stacker is the lock switch. Disconnect the gray and yellow wire and tie them together. Leave the other wire attached to the switch. The second is for bill stacker . Inside the machine where the bill stacker goes, at the bottom of the stacker is a switch. remove the red and green wire and tie them together. leave the other wire attached to the switch. Leaving the remaining wire connected to the switch keeps the wires in place is all it is doing. No sensor function. On the 6000 there is 3 wires coming from the bottom of the bill stacker/ cash can . Yellow, white, and?. Cut and Tie all 3 wires together.