New Owner.1999 S70 GLT..With Question about Turbo.

First of all I love my car!!! This is my first Volvo and will not be my last! This is a turbo charged engine as you already know. my question is how do I make it so that the turbo is louder? Put an intake on it? I like the sound of a turbgo and I want to make it so you can really hear it! Maybe you cant do anything but I think you can. Also whats a good plae to get after market parts for my car? Thanks so much for your help! Ed