As has been the topic of conversation the stock speakers in all trim packages of the Spark SUCK. So one of the first things I did was replace all 4 speakers with ARC Audio competition speakers and install a 10" ARC Audio sub in the rear with a 900 watt amp. The sound quality was a 1000% improvement but I still wasn't completely happy. The staging just wasn't right with there only being a 4" speaker in front even with it being a high quality one. Because the 4" speaker has no real midrange to speak of, most of the midrange had to come from the sub which muddied up the bass a little plus there w