GMT900 overhead tv wiring diagram?

[Whytry68]

Hi all,  I’ve been in the GMT400 crew for a long time and my wife has a Denali in the GMT900 platform.   It’s got the factory navigation with overhead tv and the tv is going bad.  I wanted to replace it with a larger unit like a 15”. But after seeing the wiring for the input to the overhead monitor I am confused....  Does anybody have a wiring schematic or explain to me what wires to hook up to the Red,White, and Yellow RCA input on the new aftermarket TV...  here is what I see: 

Here is the color coding for the wiring in the picture:

 

Green

White/black

Black

Red/white

White

Pink/black

Light green/black

 

[cmysstailights]

If the screen went dead its most likely the ribbon. On my 15 burb screen went dead, replaced ribbon ordered from ebay $7 and viola

Sent from my SM-G960U using Tapatalk

[Whytry68]

I looked and I think it’s actually the TV.  The screen looks like there is a crack in it....  so pretty sure the screen is the issue.  

[Whytry68]

Anybody?