Quote:

Here is an example of the bypass process. In your case, instead of adding headlight relays you would be adding relays or direct taps for the systems you need to use.



So this diagram proves my point. You are still tapping into the alternator stud...just through an 8gauge wire. When the car is running (and not discharging), the current source will be the alternator as it will provide a higher voltage (13.8-14.6V) than the battery itself (12.6-12.8V).

If you do the bypass from the alternator stud to the starter relay stud, this provides a much better path (less resistance) from the alternator to battery so it makes little difference now which "side" you tap from now. However, for an unmodified system, it does make a huge difference.

Those instructions are written universally for all cars...many of them having volt meters (no ammeters) and NOT pulling all the charging current through the firewall like these old Mopars.

For these old Mopars, not bypassed, best to pull from the alternator stud...period.