I have an ST3. I don't hate the sound system, but I feel it could be better. The main problem I have with it is that I would like it to be much louder. There's a lot of great info on this form about different upgrades that can be done to the system, but I can't find a clear answer on whether or not it's substantially louder once upgraded. I listen to my music (Bluetooth) at maximum volume, and it's not loud enough for me. I'm looking for a system that can go at least twice as loud with clean and powerful but not overpowering bass. Thinking of going with something like the Kicker KS Series 6.5" 2-Way Component Car Speakers with Polypropylene Cones. Also some kind of 10 inch sub, as well as a new amp. I'll also probably use some sound deadening material. Like I said, I want good lows and highs and the sound to be clear and crisp, as well as having powerful bass. All of that but really LOUD. Should I even bother, or will I get what I'm looking for with these upgrades? Thanks!