2009 Aveo Hatchback Head Unit Wire Colors

[NxC]

just recently bought a 09 Aveo hatchback. Now my problem is that the previous owner had an after market head unit installed but instead of getting an adapter for the harness, he had it hardwired in. He took the head unit out before selling it to me and gave me the factory one, telling me to just plug it back in. Like an idiot I didn't check so I have to wire it myself.

The factory harness for the radio is missing all the pins so I can't cross reference the colors. While I do plan to purchase a reverse harness for the radio, I am at a loss as to which wires from the car need to be connected to the harness. I have found the 12v constant (Red/White), the ground (Black), and all the speaker inputs. I have found two other wires (Brown/White and Yellow) that only have power when the key is in. I am assuming one is the 12v switch but I don't know what the other one is for.

This is what the label on top reads:

***********
***HUB 1***
***********
1-Battery
2-Front Left +
3-Front Right +
4-Mic In +
5-Mic In -
6-Antenna Power
7-PWM +
8-Ground
9-Front Left -
10-Front Right -
11-N/C
12-Steering Wheel Ground
13-GM LAN1
14-GM LAN2
***********
***HUB 2***
***********
1-PWM-
2-N/C
3-N/C
4-N/C
5-Rear Left +
6-Rear Right+
7-Mono Mix In+
8-N/C
9-N/C
10-N/C
11-N/C
12-Steering Wheel SW Input
13-Rear Left -
14-Rear Right -
15-Mono Mix In -
16- 16-Acc

Any help is appreciated,
Nich