As requested, I'm posting pictures of some electrical connections. The inline fuse is connected to the battery positive terminal using a crimp-on ring.

I connected to a bolt on the passenger's floor for ground.

Also shown are some of the tools I use, along with 12ga red wire and 14ga black.

 

I do much the same thing for my electrical connections. The only differece is that I use bare (non-insulated) connectors and after crimping them I flow some solder into the connection.

Machine crimped connections, such as the ones from the factory are very secure, but hand crimping tools aren't quite as good and sometimes the connections get loose over time. Solder seals them up and makes them secure for life.

If the terminal needs insulation, I slip some heat-shrink tubing over the terminal and shrink it into place.

 

When I use terminals that don't have any insulation, I usually add some solder. I expect these to hold - fingers crossed.

 

Silver, you are my hero! Great job and thanks for sharing!

Am I thinking of this right:

Red wire from positive terminal-> Inline fuse -> Continues across firewall and through the grommet into cabin under passenger dash. That much I understand. From there though is it going to the passenger fuse panel, then from the fuse panel across to the switch you added, and from the switch back to the socket you added, or is the pathway different?

Do you ground from the fuse panel to the bolt on the passenger side; or ground from the socket to the bolt; or do you ground both the panel and the socket to the bolt separately (as in a ground wire running from the panel to the bolt and another ground wire running from the socket to the bolt)?

In your picture, there also looks to be a black wire with an inline fuse coming from the positive terminal. Am I mistaken? If not, what role does that play in the added fuse panel/socket/switch circuit?

I'm sorry for all of the words and questions. I was trying to be as clear as I could. Feel free to disregard. At any rate, thanks again for sharing and nice work!

 

Just what I was looking for! Thanks!

 

The inline fuse connects to the battery, with the red wire spliced into that. Once inside the car, it goes to the switch. A wire from the other terminal on the switch goes to the fuse panel. The fuse panel has no provision for grounding. Each device connected to the fuse panel must be grounded separately.

The other wire (black) on the positive terminal is for my smart battery charger. I have a Battery Tender and one made by Yuasa. Pictures below.

 

Sweet!

So battery -> fuse -> wire (pass through to cabin) -> switch-> panel-> socket (with wire running to ground)?

And then if the switch is on, the circuit is on and if it's off, no power is flowing to the fuse panel?

Pardon my dumb questions..

 

Your questions are fine. By "socket," you mean the device being powered? If so, then yes. The positive wire goes from the panel to the light (or whatever). A ground connection must also go from the light to ground.