It sounds like lots of people are using the Creative Labs 2.1 speaker sytems to power a sub and a couple of speakers in their cabinets.  I've received my speakers (Blaupunkt TSx542), but not the 2.1 setup yet, but from looking online I can tell that I already have a question.  
The speakers I ordered came with nicely marked cables, and I picked up a pair of RCA connectors from Radio Shack.  Does Creative wire their speakers positive inside or negative inside on the RCA jacks?  I'm assuming I could figure this out if I opened everything all the way up, but I was hoping to leave their speakers & cables intact and just plug in mine.
Is there a standard for RCA jacks connecting to speakers (which is not very standard anyway, but...).  As long as I get the polarity the same on the speakers will I even be able to notice in a Mame Cab if the Sub is off?
Thanks in advance...