wont work

i was putting in an aftermarket double din radio, got the wiring harness all wired up, hooked up, radio would not work, tried pluggin antena in and it had power, i was about to button it up when somehow my power wires came undone, the wire coming from the truck headed into the radio touched the...

i have a 1993 ford ranger stx 4.0 v6 and i go to out it in 4 wheel drive and it kicks in but the light wont come on indicating that it is???? it feels like its on and i locked the hubs and then put it in 4 wheel drive? is there a different way to put it in? is there a wire shortage? or a...