My outside alarm started coming on without any indication on the control box, so after 20+years I thought it might be a good idea replace the box, so I bought a Reson8 to replace it. As with the old box there was a + and - to the strobe, on the new box there is only a - , do I leave the cable off for the + ? I have done this and just connected the remaining 5 cables, but the alarm is staying on and not responding to the control box, as it appeared to be with the old box ???