did you just wire an alarm or the wing on your trunk. That would be my guess if you did. If you did than you did a direct connect to the positive hot wire on your brake wiring. Your brake light bulbs are the only ones that are connected in a strait power signal meaning they have power to them at all times. Or if you ran the positive wire to one of these two things I mentioned above but spliced both of them together and just ran a wire to the battery. That would cause them to stay on at all times as well. normally when a relay goes bad, the lights dont work period thats why I dont think thats the case. if your alarm is wired to your brake signal and the dome light I would check to make sure you didn't accidently leave your dome light on thats another hot wire, which with aftermarket alarms is then activated once you activate the alarm. Anyways you need to wire alarms to ignition/starter signal wires, then to the lights you want to turn on when panic mode is triggered on your alarm. As for the wing you need to get a chilton on your particular car and look at the wiring diagrams and find a positive brake wire that has a on/off relay in between the lights and the pedal sending unit. if you didn't get any help from these two things let me know I'll give you some more technical rare possiblities, but it sounds to me since you called your spoiler a wing. That it's new to the car but could be wrong goodluck.