I just had my d3 installed today (2008 Altima Coupe) and the installer told me he couldn't do the bypass for me (said it was for liability reasons, which I understand). Anyway, he left a portion of the parking brake wire near the fuse box for easy access so I could bypass on my own... unfortunately, I'm not sure what he used for the harness in to the d3. I wanted to retain my steering wheel controls so he ordered the part from pac and then in the back of the d3 is a black plug - the original is still in the box. Am I going to have to pull everything out and rewire the original harness in or