can someone walk me through this...i have a msd dis-tach driver..the wires are as follows..it says red is the input..and it connects to the ignition 12v supply coming from the ignition switch..red/green is the output...it connects to the coil positive wire..the black is ground..i got that..and grey is the tach output signal wire..i got that..i cant find the ignition 12v supply coming from the switch..or the positive coil wire..can someone please tell me where they're at..and how to hook up a shift light...it has a red and yellow wire...