what did they change?

 

I have an '05 but I'm not real familiar with the '06. I'll name the things I'm aware of.
The '06 has a few body-colored areas which are black on my '05.
I believe the '06 also has audio controls on the steering wheel and a different stereo.
I think the '06 also has some kind of turn signal idicator on the side mirrors.

 

yep all those things are correct we also have a slightly updated gauge cluster. i don't think anything else really changed that much though.

 

06's have a different front grill, totally different bumpers (front and back), and an AUX connector for the stereo, as well as the above mentioned features too.

 

and on the tail lights. i belive there was a post about it. its in areo and exterior
https://www.scionlife.com/forums/viewtopic.php?t=72180

 

I have an 06 but the more I see the 04 and 05 I like the looks of them better. I like the old grille and I like the black skirts and bumper trim. That said the steering wheel radio controls and aux input are pretty damn nice too.

 

i'm more glad that i have an 06 still not a big fan of the 05 styling not sure but just don't care for it so much. the 06 to me looks more agressive than the 05 style by opening the front up more.