Where's the plug for the spoiler brake light?
 

I just installed a trunk with spoiler on my 04 coupe and I don't see a plug for the brake light on the spoiler. The original owner had the dealer put a wingless trunk so I don't have a 3rd brake light on the car. If the car originally had a spoiler from the factory then there should be a plug somewhere right? I don't want to mess anything up so can someone point me in the right direction? Looks weird when i press on the brake and the spoiler doesn't light up.