Hey i have a question. right now i have the audio phile mp3 6 disc changer in my car but i was thinking about taking my Sony xplod CDX-F5700 and having it put in instead of the stock head unit. Would it be worth it? Do you guys think it would sound better than the stock head unit? also if i do how would i hook up the stock amp to it? and also is it possible to hook up the controls on the steering wheel to the sony so i could still turn the volume up and down on the wheel?