looking for a double din stereo

i don't know which one to buy! i am looking to spend $300 give or take. i don't need navigation, and dvd doesn't really matter to me. its gotta have a AUX and USB input. i been looking at best buy and few local audio shops and i seen a Kenwood DDX419 for aroudn $350 with 2 years warranty through kenwood. Anyone have any feedback on it? i like Alpine/Kenwood/pioneer but i like them to have a volume knob that can be turn up or down easy. i dislike the button volume ones. Anyone have any Reccomendations? i am willing to order online if i find the right one. i am probably leaning towards the kenwood though. i've owned a few kenwood and they are pretty good stereos. :)i Love my Civic!

oh and blutooth is a must! which is included in the ddx419i Love my Civic!

The 419 is only a one year warrenty. Only the excelon pieces are 2 year. But its still probably your best bet. Buy from a local shop and support small businesses.