I have a 79 El Camino and I just start having problems with my tail lights. The blinkers work and brake lights. I have looked at the fuse and bulb but they are not blown what should I do next? Or would it be easy for me to put in a new fuse box and run new wire? It is an old vehicle. Also if the screw in a car like tail light plate is stripped what can I do to get it out with out braking the plastic cap over the tail light?