I have a '98 9000 CSE that I have decided to keep for several more years however, I have been looking at options for XM radio. Not wanting to have cables all over the place for antenna or connection to the radio I started to wonder about a full replacement with the Sirius/XM option and/or HD radio. But what aftermarket replacement options are available for the original radio/cassette/cd setup? Anyone with some success or advice?