If all windows do not work, check your fuses. Just order a batch of new fuses and replace all of them. You'll be surprised what they fix! You can try to clean the contact switches in the doors for seat adjustments as they wear out for your headrests and adjustments. Search these forums. Or, order new ones off Ebay. Also could be cables that are rounded out at ends under seat going into drive gears. I replaced both and fixed mine...everything works perfect now. Sunroof...87's are notorious and if fuse doesn't work, just consider it a hard top. E-Brake....mechanical. Should be easy. Cruise control...can't help you. Mine works fine. Best of luck.

Steve