I just purchased my enosio used.I have been trying to figure out all of the aftermarket things added.I have figured out everything else , except for this green button. You can press it in, and then it springs back. I have tried pressing it when the truck is off and see and hear nothing. I have also tried it when the car is on.What is on the left side of the steering wheel. Is everybody seeing this before? I was hoping somebody has seen this, before I have to start bigging into the dash and following the wires period. Thank you.