Pioneer Sound shifts/cuts in & out when hitting bumps in the road

[Karterius]

I have had my Pioneer for about 2 years now, and recently when I hit a bump in the road I lost sound in my right front speaker, well it soon came back. I then lost it in the other side, and it would cut back in when I hit another bump. The back speakers are doing the same thing.

I noticed if I lightly hit the panel under the CD player the sound comes back on for a while. I am thinking this might have to do with the harness, but haven't had anyone look at it yet... I was just curious to see if anyone else had any similar problems. Please Help!

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