Power windows and my sunroof stopped working, i know power to all the other switches is directed from the master switch but I guess im just wondering if the sunroof is tied in to it. No rush in this one since it winter here in MN but once it gets warm again I would like to have this figured out.

Hmmm. Not familiar with the sun roof systems, but I wonder if this might be the culprit...

https://www.gmforum.com/showthread.php?t=278980

that might actually be it, my carpet is coming up in that area, so I will check there when i get a chance.

Good deal. Let us know how it goes. If it does effect the sunroof, we can add that to the list of items affected by the ground bus. Don't forget, you should have 2 of them. Drivers side, and passenger side.

ok, I will take a stab at it sometime this week. I will keep you updated.

well I got it fixed turned out it was the power wire to the master switch got corroded and broke, easy fix, minus getting the door panel off and the back on correctly.