High charging, but new interior harness?
ah yeah, its not a grommet through the firewall. its a rubberized piece that is at the end of the fusible link that goes directly into the firewall through one of the three plugs with all the wiring. I will take a picture of what I am talking about.
The molded insulation is just the standard way those terminals were done. The ring terminals on the starter relay and the alternator will have also be done that way,
if I do this do I just put it right there on top of the original wires that are hooked into the ammeter and its just an additional thing to clamp down with the nut?
That article has the one of the optional wiring concepts, but the execution recommended is pretty bad.
Yes you can a second alternator output feed wire and connector to the ammeter stud on top of the existing ring terminal.
It is not a negative terminal. :BangHead:
Do not use a squeeze connector. The whole idea is to increase the current carrying capacity and those are terrible connectors for that.
Don't go through the speedometer cable grommet. Use a dedicated grommet.
Ring terminal to ring terminal. If a connector is desired in between, use one with lots of surface area.
What you do for the stereo depends on how it will be used. if its only going to be used while driving, power can be taken right from the alternator. But if its going to be run with the car off, then look at what was done for cars running rear defroster. Like this
How rare is electric rear defrost?
Another step you can take is to add a headlight relay harness. This diverts the 9 plus amps directly to the headlights further reducing the current into the car.