Stock OBS door speakers cutting out

I can't find really what I'm looking for with a search. I was just wondering if anyone has had the same problem and what they did. Sometimes they will come back on if I hit a bump or turn the radio up loud, which is ridiculous. I have the passenger side panel off and trying to move wires and what not around to simulate a bump in the road. Nothing. :think: After typing this, could it possibly be the plug in the back of my radio? That's aftermarket. I have a sub I want to hook up but what's the point if the rest of my setup doesnt work. Grrrr, any help is appreciated. :worship:

:think: Matt