Well the current install I have has been the same for over a year now, just in different cars. Funny how much better it sounds in the Focus, compared to my cavalier, same shit, just different car. Before that though I used to change shit around every 3-4 months, like amps, subs,highs and shit like that. I have learned to like what I have now, lol!
My buddy has an older GMC s-15 and is a POS, but has one of the cleanist sounding systems I have ever heard and is all old school shit. Most of the stuff is like 9 years old. Has an older clarion tape deck with a pioneer 12 disc cd changer, all Pioneer coxials and 2 sets of pioneer componets, 2 cheap *** pioneer amps for his highs, 4 10" Orion XTR's, Mmats amp on bass, and a all crossoved by acoustic 3-way xover. Never has blown anything and let me tell you what, I really wish everyone on this board could hear it. Truely amazing sound. No speical custom install, pretty basic. It just sounds really, really good for some reason.