I just bought this car and it ran fine for 3 weeks. Now the windows quit working 1st then, ac doesn't work, fan blower quit, the speed odometer and gauges on the dash quit. Also now the wipers have slowed way down. The transmission now has gotten where it isn't shifting right. I know it is electrical just need some help on where to start locating the problem.
You have to realize these things have nothing to do with each other. Is the battery maintaining a full charge? Have you checked to see if there are any bad body grounds? Did you check fuses for the electrical items? Did you check the vehicle speed sensor (VSS) for the speedo issue?