ok im a new and proud owner of a 1992 nissan 300zx non turbo great interior. brand new paint job with exhausts got for 3,700 with 125,000 miles pretty good deal huh! any way i had some questions first my brake lights they wont work. i checked the fuse and changed it. then i check the bulbs and they were good. and they still dont work does anyone know what the probelm can be? next my exhaust... is it natrual for it to get balck on one side and the other one not so much? and one last thing the mirrors they wont work their electricaldoes anyone know what the problem can be? thanks for reading this long post. thanks

first it has to be wiring from fuses to the tail lights. 2nd its kinda natural but it could be throwin smog thats maybe

3rd its the wiring again need to replace or fix