My apologies, I read your earlier post wrong. Have you looked through WDS at the wiring related to the trunk module (HKL, if I recall correctly) and the pump yet? If you need any reference pictures from someone with the comfort open/close, let me know; it's a long weekend and I may be pulling some trunk stuff apart anyway.
White 2007 Alpina B7
Supercharger clutch/bearings (check DIY), sunroof seal, quarterto8's 6000K angel eyes, bumper side mounts
Black 2002 BMW E66 / 745Li (sold)
KW v3's, blue angel eyes, 8000K headlights & HID fogs, rebuilt alternator, sunroof seal, CCVs, NGK Laser Platinum plugs, sway bar bushings, battery, timing & valve cover gaskets, valve stem seals, guibo joint, mechatronic sealing sleeve, trans fluid, alternator bracket mounting gasket, sanded headlights...