1986 taurus LX ELECTRICAL problems HELP!

I have a 1986 ford taurus LX station wagon, and a fuse blew out that controls the dash display(speed, gas amount,) and the heating/AC, as well as my turn signals. Everytime i replace the fuse it will work for a few minutes and then theres a big poof and the fuse blows again! i dont know if something happened and there is a short in the circut or if something is grounding out. Can someone please help me out!!!! thank you!
Typhanie:banghead:

I have a BMW doing exactly the same thing not even the mechanic could find out!!!complete crap...go to an electricist search for peeled wires.