88_cobra

Ok so Im putting in my new MSD 6-Digital box and I want to mount it inside the car. So I was thinking of mounting it under the passenger seat but the wires aren't long enough so i will have to lengthen them. But my question is do I have to run the red and black wires to the battery or can I hook them up to any 12V power source and ground it to the body?

hillbilly pony

You can ground it anywhere there is a good ground. The large red wire needs to be hooked up to a constant hot source and the smaller red wire needs to be hooked up to a ingition hot source.