In my opinion, bulkhead connectors are more trouble than they are worth. I know full well that there are some who disagree with this.
But you DO need a large enough feed-through device that you can yank the engine bay harness "in" to the interior.
Lots of fuses, and unlike the Painless harness I bought, I want to be able to configure the fuse panel busses they way "I" want.
STOP LABELING WIRES with FUNCTION, like heater, etc
Go ahead and COLOR and NUMBER them, FINE
In my car, I never had and never WILL HAVE "power locks" or "power windows."
So whatever I use those circuits for, I'm forever condemmed to having them labeled wrong
When in doubt, supply larger ga. wire. If the factory used 10, the supplier should probably upgrade to 8
Lighting circuits should be no14, headlights might be larger yet, and there should be provisio for relays, headlight, pump, etc, without having to "hob gob" them in a separate box. INTEGRATE that as an option into the harness.
I could write a book.
Oh, and a personal message to Ron Francis and others.
Just give us a damn extra wire for the ignition bypass. I don't give a crap what he says about diodes.