What I do is, hook up my audio to my VCR, and use what's empty there. I have two TV outs, one for Video one, and the other for Video 2. With the TV outs, are left and right inputs for RCA left(white) and right(right) jacks. I don't have any room in the back of my receiver, but my VCR does the job quite nicely.
However, follow the advice above, and go Radio shack and get the longest 1/8" jack that splits into two RCA jacks. Mine's only 6ft long, as that's the longest I could find.
Paul