Jonn21,
Excellent detective work on your part finding the detached speaker lead. Sometimes the most obvious thing is the one easily overlooked (and I do this myself--sometimes choosing a complicated fix for something that's really simple). I'll add this to an article I'm writing on sleuthing out subwoofer problems.
I'm not sure which one of my colleagues suggested licking the RCA jack but I got a great laugh out of it. From a practical point of view, licking it might remove any oxidation or grease from an RCA plug if it was really old.
I'm glad you got your EP125 up and running.
Regards,
