Hi, I was hooking up my cd player and noticed that all the RCA plug-in's on the back of my stereo are durty. The Phono 1&2, Tape 1&2 and Aux. When someone say they cleaned and lubed all the ports are they referring to these RCA plug-in's on the back of the stereo? If so or not, what is the best way to clean them inside and out? I know that cleaning the outside of them would be easy, but how do you clean the inside? Could you use Radio Shack's Clean and Lub on them, and for the inside just spray inside the holes and use a cotton wab to clean them out? I'm have learned alot on this web site. I guess i'm still on basic stereo 1. Thanks.