1993 Crown Victoria LX

I'm having problems with the lights flickering on and off when i press the brake and use the turn signals. I've tried changing the fuses and checking for shortages in the light switch itself... What could it possibly be?????????????????????

Are you saying your brake lights are flickering when you have them applied?

Yes!!! I believe it may be either a spliced wire or pinched, maybe something is grounding off when i apply the brake because the sensor under the brake pedal feeds the power to the lights and the only thing i can think is that there is a malfunctional wire somewhere in the lighting diagram... I was told to run a relay from the light switch to the lights and back to the fuse box a see if i detect any flaws.