On my way back from a trip to kentucky I hit a bump and my cd player turned off. Sometimes It does this when I go to touch the faceplate and it turns itself off but then it turns itself back on. Almost like there is a bad contact behind the plate where it plugs in. But when i went to take the plate off and put it back on it didn't work. I tried cleaning both contact points and placing it on numerous times and nothing worked consistently. Sometimes I would put it on and it would work for a little then turn itself back off to the slightest vibration... I'm gonna take a look at the wiring in the back of the head unit but i'm doubting it's that because sometimes when i put the head unit it works, but then the most minor jiggle makes it turn back off. Any other suggestions? Thanks

 

Ground wire

 

Check the power and grounds in back first....