how to fix up bulkhead connector?

The "go to" article is MAD electrical

http://www.madelectrical.com/electricaltech/amp-gauges.shtml

While you are at it, consider headlight relays. There's another article about that there at MAD

http://www.madelectrical.com/electricaltech/brighter-headlights.shtml

and "Crackedback" on here sells a nice easy relay kit for that

You can buy new terminals for the bulkhead connector (and most other connectors) called "Packard 56" terminals. I got mine from "clips and terminals"

http://www.clipsandfasteners.com/Packard_56_Series_Male_16_14_Gauge_Terminals_GM_p/w31c030.htm

Be careful you get the correct female ones. The type used by GM with the tensioner tongue that folds down are NOT correct for most mopar connectors. You want the kind that "curl" in from the edges

like these



Also realize that some problems are caused by a flakey ignition switch or switch connector. In that case you might consider operating the underhood loads from a relay

One big problem that drop causes, is that it fiddles the sensing / power wire for the regulator, and causes over (voltage) charging.