Low volts at idle

There are different ways to do this mod. Just re--read the article and follow through.

Or, you can do the engine bay a little different. Instead of re-routing the red/ black through the bulkhead as they did, you can run a NEW wire from the alternator output, over directly to the starter relay. Other than repairing or bypassing the bulkhead connector, and connecting the ammeter wires together, leave everything else connected as is.

Let's see. Look at the diagram. What you are doing is connecting both ends of the red and black together. This makes the red and the black one big wire, and because you are now going through the bulkhead on TWO connections doing the same job, you are reducing the current on each to 1/2 of what "the one" used to have to carry.

Because you have connected the alternator directly to the battery, the charging current no longer goes through the bulkhead. The only current the bulkhead connector now has to carry is the load current, like ignition, lights, heater, etc. It no long has to "see" the alternator as it's now hooked direct to the battery.

To put this another way, not only have you increased (doubled) the wire size feeding INTO the interior of the car, you have eliminated the charging current that used to go through EACH wire.