2006 Chevrolet Impala Radio Wiring

I need a wiring diagram for a 2006 Chevrolet Impala the radio harness. I need to know what all the wires are for. the factory harness was cut out when my radio was stolen. I bought an aftermarket harness but some of the wire colors don't match.

Depending on whether or not you have a factory amplifier in the vehicle. Wires are as follows

12V Constant- Orange     12V Switched- Gray( use a multimeter or a test light to identify this wire from the gray speaker wire for the front left speaker)  Ground- Black

Front Left Speaker- Tan(+)  Gray(-)

Front Right Speaker- Light Green(+) Green(-)

Rear Left Speaker-Brown(+) Yellow(-)

Rear Right Speaker- Blue(+) Light Blue(-)

I found the wiring colors for 06

Radio 12v.               RED / white   +

radio ground is.     BLACK/ white -

Radio Ingition.       gmlan serial data

Radio Illumination   PURPLE / white 

Factory amp turn on   pink same wirer as your power antenna wirer

speaker colors are the same but if you have a amp

At the amplifier, the LR subwoofer wires are dk. blue/white (+) - lt. GREEN/ black (-). The RR subwoofer wires are dk. green (+) - lt. blue/black (-).

I have a few other wires i can't figure out what they are. They are orange, orange with a black stripe, and looks like lt blue almost the same colour as the rr speaker wire and where is the accessory wire.