I'm installing an autometer DPSS shift light, I plan to run the lead straight off one of the coil packs but I'm not sure which one is the (-) side. Can someone enlighten me or suggest a different lead to use for the (-) coil lead? Also, does anyone know which loom and what color wire for the brake lights? The tach has a launch lite feature but I need to tap a bake light wire for that. Any help appreciated. thanks Mark