I have searched and have learned that if you have the Bose sound package but don't have a CD changer, your car already has the wiring and capability to have a CD changer installed.

I don't have the Bose package, though. When I hit "source" on the radio, the only two options are AM/FM and Cassette. (No CD option). Are ALL 98 devills pre-wired for CD changers, or is it just the Bose ones?

Also, what sort of adapter (if any) would I need to hook the popular aftermarket CD changer in?

Thanks.

If your radio has the 'Source' button, the pre-wiring should be there. You just need to be sure you get the correct changer for your year.