the original puch duel ignition coils setup. had the internal coil, horn with the ignition combined. blue was ignition and blue with black tracer ie.. the horn wire. my horn coil was shorting out in internally. when i hit the horn button, it shorted out the ignition like hitting the kill switch. thats why i going to run this this one. and run the brake coil setup to run the horn. and i bought the 12 volt lighting coil to run the head light and both back lights. this setup will make me run one more wire because i'm running a separate common wire from the lighting coil, the normal ground or center tap from the lighting coil will be ran to two bridge rectifiers. the yellow and green wires will also run to each of the bridge rectifiers. then the positives and negatives will be run to the regulator. then i will be able to run rear led's. that will be how my puch will be setup.