Ammeter to Voltmeter...who does it?

Mattax said
The problem with MAD's design is all the power to run the vehicle must go through several more splices and two fusible links.
Even in a situation where recharging a very low battery is frequently needed, this is not a good design.
If say, with a situation like your motor home, high current charging is frequently needed. Then a charging wire with fusible link can be added, but leave the alternator feed to the main junction as is.

So I would want a setup like this then? I redrew the MAD drawing you posted, to reflect the alternator wire running through the bulkhead connector.

Click For Full-Size Image.