digital dash/power windows not working

[mahan85GN]

I just bought a 85 grand national and the digital dash, power windows and power locks do not work. the sunroof, radio, air conditioning and heat work. i checked all fuses. any suggestions well appreciated, thanks

 

[GNONYX]

I'm not familiar with the 84-85' GN but check this site, I hope this help:http://www.vortexbuicks-etc.com/index.html