I just installed an MSD ignition kit on my car and the MSD 6AL ignition box is making electrical noise that I can hear in the car. I isolated it to the box itself and it is not coming from the speakers or anything. With the hood open when you put your ear close to the box you can here the same noise coming from the box that you hear in the car. I mounted the coil right beside the box on the left side against the fender. Is this normal, and is there anything I can do to stop the noise, Thanks.