I bought a used 2007 Chevy Silverado classic and the speakers, factory, need to be replaced. Listening to music while driving is a must so I'm ready to upgrade my system. However, I need some help deciding how much to spend and what will give me the sound I'm looking for. My mother recently bought a 2009 Mazda 3 and I love the sound in it. How can I get that quality (I'm sure it's nothing special) sound in my truck?