The previous owned of my 94 integra had the oem spoiler with the led brake light. I took of the spoiler only to find it was connect to nothing . I just bought a 3rd brake light, the one that goes on the window and i was wondering how do i hook it up because im guessing the car never had the 3rd brake light connect to the window.

If you do not have the bolts through the glass, an aftermarket LED strip attached with adhesive would be better. I used Silicone II to attach my LED light bar to the rear glass. It has been on there for several years.

Are you keeping the spoiler? The wire harness is completely missing?