1993 brake wire???

hi
i'm installing a remote starter but i can't find the WHITE wire for the brakes. I am told it is right above the pedal, but i don't see anything. or they said look at the rear brake light thingy.

????

93 grand am v6

what it is looking for is a wire that goes +dc when you hit your brakes. it is usually a plug at the top of your brake pedal or the wire going to your third brake light. you don't want to use left or right brake lights because they are tied to your blinkers