From the Rouge installation instructions: Step 29 - Remove the coil cover and install the MAF power wire (red wire) to the positive (+) side of the coil as shown above. Caution: DO NOT install the red wire to the negative side (-) of the coil or damage will occur. Also, route the power wire in a way to avoid the exhaust manifold and excessive heat.
http://www.roguetuning.com/NA-Tune_Installation_Procedure.pdf