My brakeline pressure-activated brake light switch doesn't work right so I just bought a mechanical switch to replace it from NAPA. I intended to make a bracket to mount the switch inside the car, to be activated by the brake pedal. But my master cylinder is under the floor and the brake pedal is floor mounted, rather than suspended. So it would be much easier to make a bracket and mount the switch under the car near the master cylinder. Here's my question: Is it a bad idea to mount this plastic switch under the car, where it may be exposed to the elements and to potential road hazards? Thanks for your advice.