New To The Forum.

Hello everyone, my name is Tim and Ive been checking this forum for a few weeks, just haven't had much time to post.

I am brand new to the world of car modifications, and I've been trying to learn as much as possible, so please excuse my newbieness.
I have a 2007 Sonata, and I love it. So far I've tinted the windows 20% all around and I put a new deck/sub/amp in and am loving it. I was curious as to all the other mods people have done, and which ones I should look into. Like I said before, the world of car modification is brand new and exciting to me, and i'm always looking to learn something new. I think i am on the verge of being addicted lol. Any advise would be much appreciated. Thanks everyone!