I just discovered the that I too was missing the activation module today while installing mine.
you gents think I will be safe ordering one from eBay? I have the bar installed and started routing the cables to the front but will need to pull the panels again when I get the module.
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2009 118i Monaco Blue "Maximillion"
2009 335i Saphire Black M Sport "Leopold" Cobb stage 2 aggressive tune, Mishimoto FMIC, Cobb charge pipe, Cobb catted down pipes, Forge diverter valves, BMS inlets and DCI, Cyba scoops and M Individual Audio retrofit and M3 gauge cluster retrofit.
2011 328i Titan Silver M Sport "Franzel" <--Wife's car