I just bought a 2002 chevy malibu and I want to pimp/customize it. Can anyone help me? Ideas, where to buy?

V6 3.1 Liter 21,000 miles on it, it's practically brand new. Barely driven, the color is burgundy right now. But I really want to customize the entire thing and pretty much pimp it entirely out. I live on the southside of chicago, can anyone help me online and off. I need ideas or places I can buy things. Good ideas/suggestions for the car/body/engine/interior/sound system and pretty much all of it. This is going to be a process over time because I'm not made of money right now. But anything helps, thx...