Well XM finally pushed us past the breaking point and we cancelled our Polk XM tuner. I had debated dropping it for JazzRadio streaming over Rune. I'm not going to give away my subscription code, but a few tweaks to the PLS file from VLC and she took right off!
File1=http://prem4.jazzradio.com:80/cooljazz?XXXXXXXXX
Strike the File1 part.
http://prem4.jazzradio.com:80/cooljazz?XXXXXXXXX
It looks like I have to add each channel that I want individually, but that is fine.