Interior and instrument panel lights gone dark after removing radio

I have a 2000 Dodge Caravan. (Not Grand Caravan). I decided to upgrade the factory installed radio with a new system. All I did was remove the stereo from the dash, unplug the harness and antennae & remove the wires from the harness. Now, several things have stopped working simultaneously: The instrument panel lights do not work at all; all internal lights will only turn on when the ignition is on & the open door chime does not sound, but the digital odometer and gear box lights work, the cigarette lighter works. All fuses (both inside & outside fuse boxes) are intact. How do I fix this?