Where is Parking Brake Lead in 03 VW GTI

I was installing my IVA-W200 this evening and it seems to work but I must have hooked up to the wrong wire. I used the diagram for a 04 GTI. I have a 2003 GTI with a manual transmission. I think the Foot Brake Lead wire was right (RED / black) because if i mash it a few times the dvd player beeps and says "Video Turned off for your safety" The car is not in motion it doesnt seem to register that the parking brake is on perhaps i have the wrong wiring? I wired it to (BROWN / yellow). Both connections are above the footrest under the steering wheel. This is my first DVD installation ive done complete rewiring/subs/speaker installs and so many cd/mp3 installs but this video thing seems a bit more complicated since there doesnt seem to be specific information where to wire up the wires =/ I can hear the movies playing they sound fantastic just no video. I just see the tracks playing on the alpine the screen works its just not playing the movies. Any assistance would be great thank you. -dx