I have a 1987 300 SDL, and am looking for the best head and speaker options. Preferably, I don't want to do any cutting or modifying, but am looking for replacements for the dash and rear speakers, and of course a decent head.

By the time I got my car, the speakers sounded on par with my simple smart phone. Not a good thing!

I'm hoping that with advances in speaker design that I can get good sound out of the smallish speaker options available.