Wierd Lighting Gremlin

[mean stang]

I have the LED Sequential taillights installed. When I press on the brake.....all the lights inside the car come on. Also, the right taillight works in the sequential fashion....the left blinker makes it appear like the emergency flashers are on. PS>..I do not have front blinkers installed and I know this is a closed system.....would this help my problem any to reinstall front blinkers. I also have no reverse lights.
Thanks,

 

[Edster]

I know there is a connector in the wiring harness for the interior lights Normally on the right side of the interior lights) that runs right in the area of the right rear brake light. Is it possible tat this was connected/spliced to the brake light by accident. Also does your brake lights come on when the door/s are opened or do they not come on at all? If so this may be your problem. I'd give it a look.