RCA connectors-how to tighten them up.

Back in the day you just bent the center pin ever so lightly to one side.

Thanks Ken, I never would have found that.
Bob

You are really at the mercy of your components, and most of them use female RCA's from Taiwan.  Some companies offer locking RCA plugs. You may want to have your cables re-terminated with those if your connection is poor.  The system is only as good as it's weakest link, so don't let that be a connection point.

I woke up in the middle of the night and an idea just popped into my head. I took a strip of ALUMINUM DUCT TAPE (used for A/C ducts) and I wound it two times around the outside of the RCA connector jack. Lo and behold the RCA plug is snugly fit and it really works.

REMEMBER: The duct tape must be the shiny aluminum (which is conductive) and not the gray standard one.