problom with my s-10

I recently been haveing some problom with my s-10 150.000 miles on it. well I driveing and the radio shuts off. I looked at my dash to see if alternater went out. it was still working but all my warning lights where oil,gas,service engine soon all those lights where on. the lights shut off then the radio went back on. alldata online said something about the dash illuminated and all that stuff from a connector not being properly seated.

I tore dash apart. wiggled every single wire I could see includeing under the hood. could not get it to happen. so I sure it was nothing i touched. then I was thinking well maybe It was in my stereo. so I put my factory stereo back in. still does it. its happens once in a while. well I am stumped. I think i gonna disconnect the blown speaker in the door. after i switched back to the factory stereo. I dont see it causeing my dash to illuminate like it does. anyone know of anything. please help