CB Radio Turns Off When I Hit A Bump
I recently installed my grandpa's old CB in my Jeep. I tested the PA function (it works), still haven't gotten any chatter from the AM setting (possibly from wrong tuning), and now the thing kicks off randomly. It did this when I first installed, then I took it apart and checked for a short but couldn't see any visually so I put it back together and reinstalled. After this it worked even through the bumps for a day or two but eventually went back to shutting off when I hit a bump in the road. I have to whack it to get it to turn back on but it inevitably turns off again at the next bump.
I need help understanding:
1-What could be causing this CB to malfunction and how can I fix it?
2- Any advice on how to tune it so that I can know for sure if I am receiving or not?
I will upload pics and a model # once I'm out of work.