New on Mazda&Forum

Hi, basically am new to the forum and proud to be. I just got a Mazda6 2003 basically what i want is suggestion on what to add and what not to add and how to treat my car so far i would list what i have on it.

HID
Blackout Headlight&Tail
All black Grill
Inside all blue lights under seat i think is called LED stripes

I also been wanting to get fog lights but don't know if yellow or blue
Well am hoping you guys give me some suggestions am really interested.