MSD Wiring w/ Trunk-Mounted Battery
A one wire alternator will back feed the ignition and the switch will not kill the engine. I tied in a normally open solenoid to kill the car. First picture no solenoid would not shut down , Second pic I added a solenoid and it worked great. The black capped post was my Positive battery connection from the trunk. This allowed me to retain my factory harness and battery cable to the starter with no modifications.
A one wire alternator will back feed the ignition and the switch will not kill the engine. I tied in a normally open solenoid to kill the car. First picture no solenoid would not shut down , Second pic I added a solenoid and it worked great. The black capped post was my Positive battery connection from the trunk. This allowed me to retain my factory harness and battery cable to the starter with no modifications.