Open the hatch-back, the tail light assembly which is red, has two Phillips head sheet-metal screws, one on top and one on the bottom. Remove these two screws and then use slight pressure or a...
what you would need to do is: 1, pop the trunk and remove trunk liner 2, remove the bolts for the spoiler from the trunk lid 3, remove wiring harness connector 4, lift the spoiler off the car/trunk...
sounds like you installed after market spoiler? then wired to a continuous hot source instead of splicing into brake line witch would be intermittently only when pressing on peddle!
This would be a lot easier if I new what car you have, but in the absence of that information I will say that most late model vehicles have the blub mounted in a plastic resepticle that plugs into...