HID Installation

Finally decided to go HID so got the DDM 55W/6000K kit. Already put a DDM kit in my wife's Odyssey and it went really smooth.

Not on the Z, unfortunately, so need some help.

The DDM kit for lo beams looks pretty straightforward until you look at the bulb harness (on the left in pic below). The bulb is the correct socket type (9006), but it appears to have an extra wire running through the weather seal that I'm tempted to cut off and pull out.

Whaddya think? Anyone else experience this with the DDM HID 9006 kit? Did I get the right bulb harness from DDM or should I ask them to ship me one w/o the extra power harness? I just don't understand why that's in there....