Well I got the original eurovox 6330V radio cassette in my car, and I want to run a half decent* stero system off it. Can it be done?

*Now by half decent I mean:
-Clear sound (most important)
-Alright volume, BUT it'll be mostly just normal volume stuff
-Decent bass

Now speakers etc will be changed - so what speakers - and where - will be best?

Regards/
Yours Truly.