Stereo & Electronics - Brake Lights not working...help

Ok, here's the deal. I searched for anyone who may have posted a problem like this before but found nothing. When I press the brake with the car off, the bell "dings" like the lights are on. When i turn the lights on, only the 3rd brake light works, none of the brake lights on the tails work. Would anyone happen to have a wiring diagram of the brake lights and head/parking lights? Any help I can use.

Thanks