then it kind of sounds like the RCA outs you got are crummy. 1/8" is generally easier to take out, because RCAs are usually used for a more permanent set up. that's weird is all i'm saying.
@Kris k
Would I get any signal loss from the original headphone port if I have a secondary 1/8'' pro-sound jack installed?
nope, should be ok.
Yeah, I know RCAs are definitely supposed to hold cables better as every one I've had on a different product has been borderline impossible to plug and unplug with one hand.