Please Help identifying underhood components

I always always always recommended bypassing the bulkhead connector for the ammeter wires.

I also recommend running the output stud on the alternator straight to the battery.

I usually catch hell for suggesting either.
Chrysler Corp. already bypassed the ammeter circuit on the 76 model year cars. That is why the ammeter is so "lazy" on all mopars from that date forward. Don't mess with what Ma Mopar already corrected.