anyone run a MSD 6AL with a blaster 2 coil?

sorry i dont understand, what harness should i get? the one for the small red and white wires? i ask because i dont have the kind of coil that works with. Im not asking where the slack in the wire should go. thanks though
 
where is this switched 12v ignition key wire located? ...so i can attach the small red wire to it.

As of right now, theres no spark from the coil to the distributor during the start circuit, but it sparks once or twice when i stop cranking.