Boost Controller Q's??

Alright I’ve been searching every damn place trying to figure out how to wire up and use the setting on my boost controller. It’s the old school Apexi AVC-D…Apexi no longer has the manual because it’s discontinued. H-T didn’t help much either. There are 5 wires and this is the only conclusion I can think of:
Green - Ground
Purple - RPM and Injector Signal
Black - Ground
Red - IGN power
Yellow - ??

Then there are 2 wires that run to the boost selonoid. I know where they go.
Just need help with the other 5.

I also don’t know what the dials mean on the front of the controller.
Knob for 3000, 5000, and 7000rpm w/ a dial from 0-100.
Then a knob that says SPD with a dial from .05-1.0
And the last knob says SCB with a dial from -50 to +50.

Any help is greatly appreciated. Thanks in advance.
Chris

yellow is NOT used IMO. I have used this boost controller before. I never used it because, it never reached the end of the harness(I saw it at the plug but it didn’t go to the end of the harness) the green is hooked to a momentary on switch for scramble boost mode(changes your boost to whatever the SCB knob is set to.) the spd knob is for more boost when your speed goes up. It is hooked up in my friends boosted b16 EK, I’ll double check the wires the next time I see him.