XM Radio Question

Hi, I'm thinking of getting Satellite Radio for my 2001 Jetta VR6. Does anybody know or done this to their Jetta and if so could you tell your thoughts on it? Like what you have and why? Did you install it yourself? Should I go with an XM Radio or the plug in ones? I was looking at the Delphi cause I didn't want anyone ripping my dash apart. Pictures would be great too. Any info to help me with my decision to get it or not would be very helpful. Thanks in advance. DG