every thread i just read, says to just unplug the parking brake at it's connection under the hood, and not splice any wires together.
only the 03-06 tors delete requires splicing wires.
i'll bet if you look under the hood of your new one, theres an open plug under there with no wires spliced.
here's just one of the threads with the least chitter chatter........
http://www.blasterforum.com/general-support-17/e-brake-sensor-removal-35454/
ALL YOU HAVE TO DO IS UNPLUG IT. I had that same problem on the blue 05 I had. It has backfiring and wouldn't rev. Unplugged it and the problem was solved.