run-on with MSD 6AL

If you have a factory breakerless ignition originally, there are 2 wires already jumpered together at the ballast. There is one wire went to the box which should be dead. There is a third wire that normally has a brown along with one other wire which go to the same connetor terminal. That one and either one of the two which are factory jumpered should be connected. That point or else the old coil+ wire goes to the small red