long time listener, first time caller. sorry if this has come up before, but didn't see it after a couple searches. I just bought a 2006 Prius, very excited. First item on the agenda is to replace a frayed rear center seat belt. I see some 2nd hand ones on ebay. Anyone have any tips? most of the ebay ones mention passenger or driver's side replacement - is the only difference the direction the buckle faces? or is there more to it? I've not started prying around the trim to see if I notice any dissimilarities between the belt assemblies. any diff between the passenger side rear and center rear seat belt assembly or are they interchangeable? TIA -j