Nor would I expect you to.
You can't see the wires through the plug? (as in which color is which). You can with the original Smartcord. Just look at the plug.
Those colors should run through the whole cord and out the other end. Do you know which you attached your ground to?
Also, are there 4 prongs on the plug, or only 2?
Which is the red, and which is the green (on the plug)?