PLEASE help - 72 Duster - "Mystery Wires"

I am hoping the guru's of this terrific site will help me, please.
Car I'm working with: 1972 Duster, 340 4bbl 4-spd H-code car.
The previous owner installed an MSD 6AL, and left all un-nessecary stock wiring just hanging. This car has been thru a few hands, and has seen 3 different engines. WhenI got it, I wanted/needed to inspect, clean-up all the wiring and also clean-out un-needed wiring (very carefully, and cleanly). Unfoutunately 'project creep' very quickly got WAY out of control on this one. I had intented to conclude the project within a month, so I marked only a few wires.... and that was 15 months ago!! I'm now (finally) putting this puzzle back together, and it's going quite well. That said, EXCEPT for the wires pictured below. These MUST have gone to something (I am assuming), otherwise I wouldn't have installed new terminals.... but I can see nothing they belong to. I've wire diagrams for a 1970 Valient (which I'm told is the same as a Duster), but some things are not matching at all... plus mine is 72 and not a 70. Due to this I can't fully trust this wire diagram (yes I should pony-up for one, but me-B-po, ha..).

I beg your indulgence and ask that you study the 4 pics below. They show my mystery '3 wires' (red, brown & green) on a common terminal. I do NOT know what these are for...HELP!
1) The green wire is soldered to a blue wire which connects to the alternator (see pics). At the solder-joint there are 2 other wires: a darkish-green wire which ends in the Alt Regulator plug, and a darkblue w/white stripe wire ending at terminal 'N' of the center firewall connection plug (guessing for the Alt guage..?).

2) The Brown wire, according to the 1970 Valient wire schem., goes to terminal 'Q' of the center firewall connection plug. It is ID'd as wire J3-14BR and 'apparently' goes to the steering column harness blade plug, connected to function: 'Ignition-2" .... What the heck is Ign 2..? It's dubious that it's that way on my Duster... but I do not know.

3) The red wire...geez..?..I honestly have no idea what the short red wire is for, but it appears to be a power wire for something, if the blue one from the alt is a hot wire.

Due the the relitively short length of these wires, they can't reach the Starter Relay,..which is basically the only thing in the area that these might connect to. The Ballast wiring is in a different harness and is fine.... and the coil connects to the MSD...so I'm stumped. If anyone who has the proper wire diagram for a 72 Duster or knows what I need to know, pleae PLEASE share that wisdom. I'm angry enough at myself for not marking every wire, but live & learn... even at 52, ha..:sad11:

I thank you very kindly and will check for / hoping for...responses in a couple days...