Most of you could probably give a rat's petunia about hi-fi in your cruiser. But I just had a dlux sound system installed into my '99. Eclipse cd head unit; 4-MB Quart speakers including tweeters; RL Audio amps; 8" JL Subwoofer and Dynamat in all doors and rear. The guys that installed it said it turned out to be the best vehicle for overall sound that they have worked on. And they've been doing this for 20+ years! The Dynamat really made a big difference in the overall interior quietness and sound dampning! FYI.