I have been searching the forums for about an hr found nothing that fits this found a lot about chuffing smoke units but. I have a f3 that has a cruise commander in it I want to add a smoke unit the smoke units (lionel ) has 3 wire plug 2 outter wires are red center is black to make it work with the cruise commander do I tie both reds together on the smoke output for the cruise commander. then black to chassis ground ??