Hi. I have my battery in the trunk with the rear mounted cut off switch. I just put a one-wire alternator on it and it doesn't shut off when you turn the rear cut off switch to off. I am using a ford type remote seloniod on the firewall and wired the alt. directly to it (the terminal that leads back to the switch). MSD said to use a diode as described in the msd owners manual, but it seems to apply more to stock type wiring set-ups and not what I have. What should I do? Thanks.