Clean 12v switched source that is hot cranking and running

By the way this problem is ALSO common with GM and Ferd. I don't know why the EFI people did not do a better job of addressing this problem. For example, older GM has the S and I terminals down on the starter solenoid. The "I" terminal does the same job as the IGN2 circuit in the Mopar ignition switch

Same is true of Ford. The "I" terminal on older Ford fender starter relay feeds "hot" full 12V to the coil during cranking.

The difference is that Mopar applied this circuit right in the ignition switch, instead of the starter relay/ solenoid.