I recently bought my 06 Pac and have since replaced the woofer enclosure inside the back panel due to a previous owner removing. I figured it would be plug and play, but I was sadly mistaken. I have tested the plug and found there is power at the plug on 2 of the 4 pins. Upon removing the woofer from the enclosure to test at the 2 terminals on back of woofer, I have realized both positive wires go to the same terminal and negatives both go to the other terminal. Not sure if there were different wire configurations in these, but I've wired plenty of Subwoofer set ups in the past and I have never seen 2 positives on one terminal and 2 negatives on the other terminal with a DVC woofer.