Pinout for OHC HVAC controls and Map lights?

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Nicolai8775

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I'm fabbing up an overhead console from a Bravada, the long one with Homelink, a DIC, and all that good stuff. Sadly it's tan and my interior is gray and it's going into a 2001 Tahoe not a blazer.

The wiring is confusing the hell out of me. Coming out of the headliner I have the rear HVAC controls, I have a orange/black/brown 3 wire connector, and a gray/bare aluminum ground wire. Will grab pics in a bit.

The OHC has a large "crystal" light in the center which I'm assuming is supposed to turn on when you open the doors, can't figure out what wires they are supposed to tie into for that feature. It also has 4 of the swivel map lights. I have power to the map lights.

I'm trying to figure out what the wires dangling out of my headliner mean. The orange/black/brown ones. A pinout of the HVAC connector, and the gray/bare ground wire so I can piece it all together with the new OHC harness.

I also am trying to figure out how to power the Homelink.
It has orange(power), purple/yellow stripe(ground), green(illumination).

I want to know if there is anything in the HVAC harness I can utilize, or how I can make that "crystal" lense light turn on only when I flip the dimmer switch all the way up to turn on all cab lights only. How to power Homelink, (my existing OHC has Homelink).

A pinout of what's dangling out of my headliner would be very handy.
 
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Nicolai8775

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Here is the stuff dangling from my 2001 Tahoe originally equipped with Homelink, 2 swivel map lights, and rear HVAC controls.

Ps if anyone happens to have a pinout of this mess from an unknown year Bravada OHC, equipped with DIC, Homelink, a bunch of lights, etc.

16223256274297270702088771716906.jpg 16223259943624005750453280133206.jpg 16223260431862933692203753518149.jpg
 
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Nicolai8775

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So far I have power to the 4 map lights. Power to the DIC, thanks to a YouTube video I found a Retained Accessory Power pin in the MBEC board by the brake pedal to turn on the display when key is in on position or accessory. The Homelink system appears to have power as well when buttons are pressed
 
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Nicolai8775

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Does anybody know what this cord was for? I'm thinking the old OnStar mic? I don't have my original ohc to reference at the moment

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