1985 Chevy Truck no power when I turn the key to start the

On a few occasions when I went to start my truck I would turn the key forward and no idiot light would come on and the truck wouldnt start ( no power ). After a few minutes of wiggling my key in the ignition lock cylinder and wiggling the steering wheel my idiot light would come back on and my truck would start.
my truck is currently not starting and after alot of wiggling I get no idiot light. The battery is charged, my interior light works and my headlights come on. When my truck does this I keep the key turned forward, I get no power at the radio, the hazzard lights and signal lights and wipers dont get power either. I chaned the ignition lock cylinder and the ignition switch as well but I still get no power when I turn the key. Both ways. When I turn the key back to accessory nothing gets power. PLEASE HELP. Thank you for your time