AveoRob wrote:
I think the picture is showing a T tap in the one under the dash. I don't think you have to go to the ECM, the wires should be in a plug at the firewall on the inside of the car. You could use 3M T taps or 3M scotch-lock connectors to tap the wires, or strip/solder/tape. I did the DIY mod on this site where you just buy an OEM switch and tap 2 wires and they are both in the plug at the firewall. took me less than 30 minutes start to finish.
Do you have a 2007 or 2008 aveo sedan? I'm pretty sure they eliminated those wires in my car. I searched for awhile and found the harness with only 1 black wire connecting to 1 green wire (ground), 1 blue wire (Audio control), 1 brown wire (Audio switch). See picture below. That's it! How I wish you were right, it would be 100x easier.
The other question was how to get the wires from the steering wheel through the column to the harness below. I haven't pulled my steering wheel off and don't want to, but I may have to in order to route the wires correctly. I don't want them to get twisted around in the steering wheel!