Hi i have a rather pathetic 106 mardi gras, it currently has the standard cassette radio, i would like to upgrade my whole audio system, i have no alarm on this car therefore do not particually want to spend loads of $$$$$ on hardware, i think i should just relace the head unit and front speakers (13cm if im correct). i am open to opinions on a suitable setup and also would be happy to recieve advice on what items to purchase (head unit MUST have CD-r, CD-rw, RDS and MP3). am confused about front speakers and tweeters in particular :S. any help would be deeply appriciated, Craig