Radio questions

I have a 94 sc with premium sound am/fm cass. I want to replace this radio with a cd player. Is there any one that works better with the premium sound then the other. And the other question is What should I know about the amp and the sub. Can you adjust it? Let me know what you guys think.

Is there something that will work better?

Um.. Yeah.. Just about any Mid end and evey High end head unit will perform better. But you can have all the quality in the world if you have crummy speakers. aka OEM speakers.

As far as the amp, your stereo installer will take care of that with a harness that will still keep the sub working.