I have a 1999 chevrolet Monte Carlo z-34 with about 107,000 mikes. The brake lights stopped working. I checked the fuses and I replaced the brake light switch on the colum, still no brake lights. Bulbs are ok as 4-way flashers, turn signals, and tail lights work. What's up? Why counldn't they have just left things easier to work on like the 55' chevy?