Elec woes, crank, no start after running then parked.

OP has me on IGNORE so maybe someone can relay the following....
I've dealt with this numerous times with my Charger. For years I dealt with months of reliable starting and the occasional crank-crank-crank with no spark. I took the bulkhead plugs off, cleaned them, packed them with dielectric grease and the problem hasn't come back.
I figured the issue was due to a poor connection somewhere but I was focused on the coil, ECM, distributor and ballast resistor wiring instead of the bulkhead plugs.