scruffy

I have a 93 GXE and its developed some really strange(to me anyway) electrical problems. Started with the antenna, currently stuck in the up position, next time the planets move it will go down or start going up and down on its own. Next the display on the radio faded out then came back then went out permanently, Next it was the clock faded out and came back several times. Now out for the count. Last the door lock wont function from the door switch. They too work when there is an eclipse. I thought I may have a bad ground but dont have a clue where to look for it.
Any help would be appreciated.