Will
"It was deactivated due to having a solid mounted rear spoiler on the back. I already checked the fuse, but don't know what else to look for. Relays?"
When I purchased my 2000 S with the Aero kit 1 mine would not move also. Under the the plastic piece that covers the latch in the trunk. (2 Screws hold this) Mine was inpluged try this. Also after I pluged mine in 1 week later I unpluged it the lines to the car were not the same with both spoilers. imho I hope this helps.