Ask or if yu kno if there were aftermarket rear tail lights on the car at one time, is so like stated there may be a wiring problem in the or near the rear tail light assymblies that is causeing yur parking lamps and instrument gauges not to werk. Also this aplies to parking/running lights in the front parking and running light sockets in the bumper. I have corrected to , well 3 cases like this.One was due to a corroded plug in in the front parking lamp housing due to water and moister(dampness and retained water in the housing) making the fuse blow everytime the parking lights were turned on.Same thing in case of the rear lights on another(91) had moister and kept blowing fuses).the last was sum1 put aftermarket lights and they messes up the wiring due to having to change the bulb pig tails to fit the sockets of the aftermarket lights. One last thing i could think of is if there were indiglo or reverse glo gauges which had to be wired to the lights on the panel, and then they were taken out and the wires not correctlly retaped not to expose or bad job just taking the gauges out woul explain the lighting issue.. for more detail just email : Baorice@yahoo.com