Is taking a relay trigger feed from the ignition coil +tve terminal OK or a dumb idea? I need a 'clean' low amp feed in both ignition key start and run positions and can't figure out where to tap into the car to get one. I figured if I take a relay trigger from the coil +tve terminal and use that to switch a direct, fused battery feed everything is golden. Or not as the case may be. Cheers Bob