05 Yukon XL Radio Wiring Harness

[psimm]

2005 Yukon XL with factory Bose system, steering wheel controls. Previous owner took the truck to some hack-job shop when installing an aftermarket radio, and they completely butchered the harness plug that goes into the back of the factory unit. I have searched high and low on the web, looking for the wire descriptions. I have found some that are similar, but don't include all the wires. I would post a picture of the clipped out plug, but the colors aren't showing properly. I have the following wires:
Pink
Thick orange
Thin orange
Purple
Gray/black
Tan
Green
Green/white
Brown
Black
Brown/black
Blue
Light green
Black/white
If anyone can help me with what each wire is for, I'd greatly appreciate it.