Active aero control unit?

Hey guys, i removed my front air dam\motor, and active aero rear spoiler for the hoop, and now someone wants to buy my active aero set, but he asked me if it had a control unit. Does teh system have one? where is it located if it does, thanks!

its in the hatch area...drivers rear corner in i recall correctly. I think its attatched to the Active Exhaust computer.


PS: If your buyer falls through...i may be interested in purchasing just the mechanics of the rear spoiler...the motor and the arms...not the plastic.