The is the NEW '07 Silverado, not the Silverado Classic

 

I can't seem to find documentation of the location of my VSS wire and

reverse gear wire so I can tap into them with my z2. Crutchfield could only give me info on the Classic Silverado's, which doesn't help. I found the 68 pin connecter that SHOULD hold the two wires I'm looking for, however, I can't seem to find them.

is this what you are looking for.

 

yellow/black ECM, black 73 pin plug, pin 57

Heck, i'm not sure. We found the reverse wire after shifting back and forth while testing wires with the multimeter. I couldn't find the location you were talking about.

 

We still can't find the VSS wire. Going to do a little more research first until we can find it.