I am playing around with a small bullet camera mounted on my helmet and recording on my camcorder. I installed a DC power supply on my 93 300ex to power the bullet camera. The picture looks great until the quad is started. At this point there is noise or a sparkling in the video. I have both wires for the power supply running to the battery. I have been told that this could be caused by the ignition system. Does anyone have a fix for me?