As everyone knows, the stock stereo in the GTI/GLI/Rabbit/Jetta is not the greatest. With a limited budget in mind, what is the best bang for the buck to improve the sound quality? I am interested in clarity over loudness, and vocals and strings over heavy bass.
I am reluctant to have them change the speakers for the fear of creating extra rattles in the doors, and of the air bags being damaged in the process. Secondly, the new speakers with installation, cost more than a new head unit, or a new amp with installation.

I've been told that adding a good 4 channel amplifier and some new 3-way crossovers will improve the audio quality to the degree that I want. My question is should I just go to the Best Buy here in Langley and get this
amp and ask them to install the new crossovers as well? Or should I get something else?


I am completely cluless about car audio. I don't even know what a crossover does but apparently it's a big part of the problem.