Hi Gang,
I've had my Smart since April 28, and loved everything about it** EXCEPT that tinny-sounding radio, but I didn't want a 6-cd changer, so opted for the cheap one. For Mother's Day, my wonderful son bought me some Infinity speakers with crossovers, and came over to install them. If you're thinking about replacing yours, here's a word from the wise- you can get to them VERY easily by removing the OUTSIDE door panels, not the inside. It took trial and error, because he first began methodically removing the inside, and quickly discovered how difficult it was going to be. After I suggested he just remove the outside panel, he tried that.. and WOW... in no time he was done! The passenger door took a total of maybe 20 minutes, start to finish!
If anyone wants the step-by-step directions, let me know.. would be happy to share the info. Now my radio sounds fantastic!!