1974 Duster Ammeter Bypass

OK the Painless deal should "almost" automatically eliminate the problem IF

1....You eliminate the bulkhead connector and simply use a grommet to feed the harness through the bulkhead. If you can use a file and hacksaw, you can use the old firewall connector from the "dash" side as a pattern and cut a simple metal plate that will clip in place using the original type gasket and spring clips. Just put a hole and grommmet (which should have come with the painless kit

2...I dearly hope this is a "complete" Painless harness and therefore you can leave out the seat belt interlock stuff which interrupts the yellow start wire

3...The Painless instructions (if not changed) are poor at detailing the Mopar ballast resistor. If you are NOT using a ballast, you must at some point jumper the IGN1 and IGN2 connections together either right at the ignition switch, or out in the "bay" I would recommend "out in the engine bay" IF you think you will ever use an ignition system which requires a ballast

EDIT I see figure 7-2A does address the brown "IGN2" wire 931

And table 7-1 does show the ignition switch colors although they use somewhat different terminology than does the Mopar factory diagrams
Ylw¹ Ignition Start 919 Ylw
Brn Ignition Coil 931 Brn
Blk Accessory Fuse Panel 932 Blk
Blu Ignition Switched Fuse Panel 933 Blu
Red Battery B+ 934 Red

Can you post a link to the Painless destructions?

EDIT never mind I found them

https://www.painlessperformance.com/Manuals/10127.pdf

7.2.1 Connect ENGINE SECTION (single) 10-gauge red wire #916 (with or without ammeter) to the
MAXI fuse. Use remaining 10 ga. to connect to Starter Relay Battery Terminal. Retain excess wire.

SEE FIGURE 7-1B


Also do you have a 74 factory wiring diagram as well as the "MyMopar" two page aftermarket ones?