07 G35x, RCA cables are very finnicky, audio cuts out... Etc etc. I've cleaned the jacks with alcohol, any thoughts? Edit: I've tried 5 different cables.

 

Are they loose at the console end ? If you wiggle them do they cut out ? Try the red only then the white only to see if it's both (not likely, I'd think) or just one of them. Just trying to see which end may be the problem. May have to disassemble the console (partly) to see if you can secure them better. Worst case, if the connectors are worn out you could splice a new cable section with connectors in (?). Never done it myself so I don't know if it's easy, simple, etc...

Do you plug and unplug them frequently (before this happened) ? My experience is cables almost never "fail" but their connections can get broken and that's from plugging and unplugging. Sometimes it's necessary, I realize, but I avoid it as much as possible.