Installing my old aftermarket radio.

I am sure you guys get a lot of these questions, but I get a little confused when it comes to the wiring. I am installing a Kenwood KDC-342U http://www.kenwoodusa.com/UserFiles/.../kdcmp342u.pdf

In my 2010 Chevy Aveo, I have a wiring harness adapter that came with the unit. I also bought the GM18b wiring harness from Scorsche
http://www.amazon.com/SCOSCHE-GM18B-WIRING-HARNESS-CHEVROLET/dp/B004MNP3GC

as it says Aveo 2007 and up. Looking at the wiring diagram for the aftermarket radio it only mentions that there are four speaker wires. My Aveo has four speakers and the two tweeters in the pillars. I guess what I am asking is anyone can shed some light on the subject.

I read into it further so I see that the tweeters run off the front door speakers, however I am not sure my wiring harness will work. They both fit the connectors on the inside of the dash to the car, however one of the connectors seems like it is missing a good number of wires. Does anyone know the correct wiring harness for the 2010 sedan?

I decided to just try and put it in. I matched the wires the best I could with the diagram. There are a few wires left over, but everything works. I guess the extra wires in the connectors on the dash are for the Onstar system.

2007 Chevrolet Aveo Car Radio Wiring Diagram


Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black

Car Radio Illumination Wire: Brown/White
Car Stereo Dimmer Wire: Light Green/Red


Left Front Speaker Positive Wire (+): Violet
Left Front Speaker Negative Wire (-): Light Green


Right Front Speaker Positive Wire (+): Light Blue
Right Front Speaker Negative Wire (-): Brown

Thanks for posting that, pluto.