Dieselgang5.9

hi i have a 2000 dodge ram 3500 24v cummins. just recently all the dash lights and gauges power up on there own, like the ignition was turned on but the key was in the off position. i could tilt the steering wheel back and fourth this would make the powed turn off. i started the engine and it would not turn off until i tilted the steering wheel. the truck has higher miles so i replaced the ignition switch hoping that was the issue, but the issue came back tonight. also when you shut the passenger side door kinda hard it would make the dash and gauges power on. i figured i would run it by you and see what you thought. thanks in advance